As a noob there were four things that sucked worse than Windows so far:
Properly mounting a NAS so file pickers in programs don't shit themselves or refuse to see it. There's no GUI feature even in KDE for this task. Should not be like this modern day. Mounting anything properly is annoying here.
Whatever the fuck KDE Wallet is doing prompting me for a password to mount a secondary SSD every login despite trying to make it not do that with guides. On going.
Learning about .pacnew files in etc, but meld thankfully takes the edge off dealing with diff.
Getting gud with all the gaming tools and compatibility tools to the point I'm proficient enough to mod most games again.
Not bad, all things considered. You're right that it's harder OS overall to learn. Still, I'd say I broke stuff on Linux about as often as I did bending Windows 9x and XP to my will growing up. Managed to make SDDM not start automatically by mistake dealing with .pacnew my first time.
To do: go through restoring one of CachyOS's system recovery snapshots even tho nothing is broken currently so I actually know how if/when I really need to.