For me it was:
Windows (for many years) -> Ubuntu (for a year) -> Arch Linux (for half a year) -> Void Linux (literally 2 days) -> Artix Linux with runit (a month) -> Gentoo Linux (another month) -> Debian (finally, I don’t plan on changing it).
Also, when trying to switch from Gentoo to Debian, I fucked up all my data with no backup.
What was your journey?
EDIT: Added Windows
In the 90’s: Slackware, then RedHat, then Debian, then Progeny (Debian based), then shortly Mandrake (RedHat based)
Early 2000’s: RedHat Japanese edition, TurboLinux (because I was in Japan and Japanese IME was almost impossible to get working on non-Japanese distributions)
Then I had fun with Gentoo looking at my terminal compiling stuff everyday and fixing broken package because I followed advices to activate crazy compilation flags
2004: Ubuntu, that I used for nearly 20 years
Last year: switched to Fedora
What happened last year?
The Shakahola Forest Incident, for one thing.
Nothing in particular, for the past few years I didn’t like the direction Ubuntu was taking but I stayed because I was too lazy to switch and it didn’t feel that bad.
So I’m not sure exactly what was the last straw, maybe part of it was me getting a Steam Deck, discovering flatpak and understanding how bad snap was compared to it.