Why Linux? - Privacy and Freedom
OS Chronicle:
Windows 98 → XP → Vista → 7
Learned about Ubuntu and installed it when my first laptop couldn’t run Windows 7 quickly anymore.
Learned about other distros and dual-booting on my second laptop.
Been dual-booting since (for the most part).
Ubuntu → Kubuntu → Linux Mint
OpenSuse
Mandriva → Mageia
Antergos - the first time I felt confident with Linux. So much so, I went more than 6 months without Windows.
Manjaro and KaOS - When I decided that full KDE and/or XFCE compatibility was a requirement for any distro I would use going forward.
By that, I mean that the distro itself provided the theming and up-to-date/latest features.
However, some Manjaro updates broke my system (twice in the last 2 years) and I lost some important files… Unforgivable. 
Yes, I know I should have had backups, but still…
Mx Linux - currently installed and locked away on a portable SSD as a backup/rescue OS. Not for everyday use and I update it once a week; that’s it.
EndeavourOS - current with Windows 10 (which is only installed because I need Marvelous Designer). One day, I’ll become so good with Blender I won’t need it.
One day.
I’d say I’ve been dual-booting for the last 10 years with Windows 7 or 10. Though sometimes, particularly with Arch distros, I would run only Linux for months.
I’ve also tried Frugalware, Pop! OS, Ubuntu Studio, Ubuntu Budgie, FreeBSD, OpenSUSE, PCLinuxOS, KDE Neon, and Fedora during this time. However, none of these lasted more than a month or two before going back to one of the prior mentioned ones.
Also, the HDD that got most of these installs is now dead because of all that formatting. 


EDIT: I have an NVIDIA card so KDE doesn’t play well with it. So, recently I went searching for a DE that could really match KDE. I landed on Cinnamon. Now, until I buy a new machine with AMD (or if NVIDIA starts playing well with KDE), I’m never going back.
I never knew I could have a fully customizable experience with a DE outside of KDE that still didn’t feel like I was missing something (I love XFCE and Budgie, but they’re nothing in comparison to these two).
Anyway, if anyone reads this and has an NVIDIA card that you can’t do without and you want a DE that has everything you need (without the KDE stutter), KDE is not your only option. Give Cinnamon a go.