Congrats. OS/2 Warp was my favorite too (gone are my days days of Redhat, Slackware, Mandrake and Ubuntu).
I’m on Gnome with my Thinkpads for now. I know your using Cinnamon, but i stopped using TLP for power mangement because of recent Gnome dependency changes. I’m not sure if this affects you. Just thinkpads have advanced power management and charging.