Yet another slow shutdown/reboot issue

I haven’t done any system modification, just some package installation. Here it is my system info:

System:
  Kernel: 5.16.16-arch1-1 x86_64 bits: 64 compiler: gcc v: 11.2.0
    parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux
    root=UUID=af319153-4856-4809-8685-90de78eee44e rw rootflags=subvol=@
    resume=UUID=d2519d4a-660f-49c8-93b6-6a0dd5b7b699 loglevel=3 nowatchdog
    nvme_load=YES nvidia-drm.modeset=1 systemd.log_level=debug
    systemd.log_target=kmsg log_buf_len=1M printk.devkmsg=on enforcing=0
  Desktop: KDE Plasma 5.24.3 tk: Qt 5.15.3 wm: kwin_x11 vt: 1 dm: SDDM
    Distro: EndeavourOS base: Arch Linux
Machine:
  Type: Desktop System: Gigabyte product: AB350-Gaming v: N/A
    serial: <superuser required>
  Mobo: Gigabyte model: AB350-Gaming-CF v: x.x serial: <superuser required>
    UEFI: American Megatrends v: F10 date: 12/01/2017
CPU:
  Info: model: AMD Ryzen 5 1600 bits: 64 type: MT MCP arch: Zen
    family: 0x17 (23) model-id: 1 stepping: 1 microcode: 0x8001129
  Topology: cpus: 1x cores: 6 tpc: 2 threads: 12 smt: enabled cache:
    L1: 576 KiB desc: d-6x32 KiB; i-6x64 KiB L2: 3 MiB desc: 6x512 KiB
    L3: 16 MiB desc: 2x8 MiB
  Speed (MHz): avg: 1685 high: 2769 min/max: 1550/3200 boost: enabled
    scaling: driver: acpi-cpufreq governor: schedutil cores: 1: 1726 2: 2769
    3: 1353 4: 1275 5: 1475 6: 1344 7: 1268 8: 1364 9: 1319 10: 1269 11: 2329
    12: 2738 bogomips: 76668
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
  Vulnerabilities:
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: spec_store_bypass
    mitigation: Speculative Store Bypass disabled via prctl
  Type: spectre_v1
    mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2 mitigation: Retpolines, STIBP: disabled, RSB filling
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA GM206 [GeForce GTX 960] vendor: ASUSTeK driver: nvidia
    v: 510.54 alternate: nouveau,nvidia_drm pcie: gen: 3 speed: 8 GT/s
    lanes: 16 ports: active: none off: DVI-I-1,HDMI-A-1 empty: DP-1,DP-2,DP-3
    bus-ID: 07:00.0 chip-ID: 10de:1401 class-ID: 0300
  Display: x11 server: X.Org v: 1.21.1.3 compositor: kwin_x11 driver: X:
    loaded: nvidia unloaded: modesetting alternate: fbdev,nouveau,nv,vesa
    gpu: nvidia display-ID: :0 screens: 1
  Screen-1: 0 s-res: 3520x1080 s-dpi: 93 s-size: 961x292mm (37.8x11.5")
    s-diag: 1004mm (39.5")
  Monitor-1: DVI-I-0 pos: right res: 1600x900 hz: 60 dpi: 94
    size: 432x240mm (17.0x9.4") diag: 494mm (19.5")
  Monitor-2: HDMI-0 pos: primary,left res: 1920x1080 hz: 60 dpi: 94
    size: 521x293mm (20.5x11.5") diag: 598mm (23.5")
  OpenGL: renderer: NVIDIA GeForce GTX 960/PCIe/SSE2 v: 4.6.0 NVIDIA 510.54
    direct render: Yes
Audio:
  Device-1: NVIDIA GM206 High Definition Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    bus-ID: 07:00.1 chip-ID: 10de:0fba class-ID: 0403
  Device-2: AMD Family 17h HD Audio vendor: Gigabyte driver: snd_hda_intel
    v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 09:00.3
    chip-ID: 1022:1457 class-ID: 0403
  Device-3: Logitech G432 Gaming Headset type: USB
    driver: hid-generic,snd-usb-audio,usbhid bus-ID: 3-1:2 chip-ID: 046d:0a9c
    class-ID: 0300 serial: <filter>
  Sound Server-1: ALSA v: k5.16.16-arch1-1 running: yes
  Sound Server-2: PulseAudio v: 15.0 running: no
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: Gigabyte driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
    lanes: 1 port: f000 bus-ID: 04:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp4s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives:
  Local Storage: total: 2.51 TiB used: 116.65 GiB (4.5%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Silicon Power
    model: SPCC M.2 PCIe SSD size: 476.94 GiB block-size: physical: 512 B
    logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
    rev: ECFM22.7 temp: 28.9 C scheme: GPT
  ID-2: /dev/sda maj-min: 8:0 vendor: Samsung model: SSD 850 EVO 250GB
    size: 232.89 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
    type: SSD serial: <filter> rev: 2B6Q scheme: GPT
  ID-3: /dev/sdb maj-min: 8:16 vendor: Seagate model: ST2000DM008-2FR102
    size: 1.82 TiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
    type: HDD rpm: 7200 serial: <filter> rev: 0001 scheme: GPT
Partition:
  ID-1: / raw-size: 467.84 GiB size: 467.84 GiB (100.00%)
    used: 17.17 GiB (3.7%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 576 KiB (0.2%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
  ID-3: /home raw-size: 467.84 GiB size: 467.84 GiB (100.00%)
    used: 17.17 GiB (3.7%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
  ID-4: /var/log raw-size: 467.84 GiB size: 467.84 GiB (100.00%)
    used: 17.17 GiB (3.7%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
  ID-1: swap-1 type: partition size: 8.8 GiB used: 0 KiB (0.0%)
    priority: -2 dev: /dev/nvme0n1p3 maj-min: 259:3
Sensors:
  System Temperatures: cpu: N/A mobo: N/A gpu: nvidia temp: 52 C
  Fan Speeds (RPM): N/A gpu: nvidia fan: 25%
Info:
  Processes: 312 Uptime: 16m wakeups: 0 Memory: 7.78 GiB
  used: 2.24 GiB (28.9%) Init: systemd v: 250 tool: systemctl Compilers:
  gcc: 11.2.0 Packages: pacman: 1037 lib: 276 Shell: Zsh v: 5.8.1
  running-in: kitty inxi: 3.3.13

About systemd-analyze, doesn’t it show boot timings? My issue only occurs on shutdown or reboot.

I searched the forum and found only one post similar to mine but the op fixed by accident and couldn’t provide any solution sadly.