You are in a bubble/biased. I've switched to Linux on desktop half a year ago. For the average user, Linux has as many issues as Windows (or as few, more precisely).

In Windows, things mostly worked, with some minor annoyances. For example, night light stopped working at some point. Forced reboots for updates are another things I really don't like. SMB file sharing still does not work well out of the box, esp. w. Android phones.

In Linux, it is kinda the same, with the exception that I had a few really bad cases when GUI stopped working at all (terminal worked still, but barely).

My Lenovo laptop officially supports Linux. Still.

Things that I had lately (And I don't remember half of it) 1. BT headset disconnecting after a few seconds of connecting.

2. BT Game controller not detected by PC sometimes.

3. Application installs are weird and not that convenient. Sometimes you use package manager, sometimes AppImage, sometimes flatpak, sometimes brew, sometimes source code, sometimes zipped binary.

4. KDE vaults cannot be closed, because KDE indexing service locks dirs/files inside them.

5. KDE Indexing service indexes stuff that needs not to be indexed, hogging SSD resources and killing its lifespan.

6. KDE built-in screenshot app does not have good good annotation shortcuts, and annotation tools could be better.

7. Multi-monitor support have minor issues out of the box. Either display is garbled when laptop comes out of the sleep, or it does not support DisplayLink out of the box, or something else.

8. Graphics hardware acceleration in Firefox sometimes works, sometimes does not. Lately it does work, which is nice.

9. Game had a bug when it was choosing wrong GPU. No system configuration option was helping at all. Like literally nothing. Only disabling embedded GPU in Bios did.

10. Hibernation menu item exists, but does not work, coming out of hibernation is broken.

11. If you use hard links and directory bind mounts a lot, you will soon find that these are declared as working, but half of the software breaks when encountering them.

12. Laptop performance profiles selected from tray kinda work, but not reliably. I have to use laptop Fn button shortcut for them.

13. When I tried to change some stuff in keyboard layouts for non-english language, I encountered some weird behaviors/bugs. It took me a lot of time to properly configure CapsLock as a keyboard layout switch. On Windows, it is not possible as a built-in feature. With 3rd party - one tiny 20kb app.

14. While audio works mostly very well, sometimes, with a lot of audio devices, they glitch a little.

15. Bluetooth devices take a long time to display in connection list.

16. BT mouse takes 5 seconds to wake from sleep.

17. For me, fonts looks slightly worse then on Windows. I tried a lot of options, but I prefer Windows ClearType default look on my FullHD monitor.

18. Dolphin file manager has quite a lot weird/inconvenient behaviors. How it allows to work under root permissions (weirdly), how it handles absent network drives and some others.