Spend the time to get acquainted, soon you will see you can do almost everything you need on linux (and more) that you can on Windows/macOS, but with less mental overhead (after you are used to linux, it really is simpler).
Also saving files in Debian is a bit of a pain. I think it keeps searching instead of actually typing the file name when you save a new word doc from libre office or another application.
Plus other services, like Netflix and Hulu, may not work out of the box. You’ll have to find a workaround but I think their official stance is still “Linux is not a supported platform”.
Don’t get me wrong Linux is great and it’s in a wonderful spot compared to 10 years ago. But it still does not have the polish or UX that users from windows and Mac expect in an operating system.
(I'm all ears on how to solve that file picker problem though, that is mildly annoying).
Use the for long time available patch for GTK file chooser, use an XDG portal to open KDE file chooser instead of the GTK one, or use a Qt-based (KDE or Deepin) rather a GTK-based environment. And for any interested programmers, a maintainer recently has outlined some steps[0] to introduce that functionality in a way that probably GNOME devs will accept.
[0]: https://gitlab.gnome.org/GNOME/gtk/-/issues/233#note_1106706
Obviously this varies from person to person but I have verified already a more than a decade ago that it worked very well with ordinary users as long as they didn't need MS Office or anything like it.
And true: Netflix doesn't work but for that I use my phone/tablet that I cast to my TV.
You may say: not everyone has a PC and a phone but as far as I can see the overwhelming majority who has a PC also seems to have a smartphone.
Like, yes, most things have a learning curve. I have yet to encounter any evidence that Windows having a particularly easy one for anything is more than propaganda
You only have a directory file tree, that is often not in the right directory, where the application was launched from. No really way to directly jump to a directory via a path, that you copied from a open Explorer, which you might have open next to it, because you started the .exe from there. So you have to click your way through.
Nevertheless, my days of advocating for others to use it are over (I even used to frequent comp.linux.advocacy!). People that are used to Windows will have a very hard time moving away of it. No matter how easy the migration path, there will always be something painful. The path of least resistance will always be running Windows. And in addition even the most polished Linux versions have issues. I've run them all. They are nice, but once you get into an obscure singular case, the console dance start. Wifi, sound, bluethoot, video, media-keyboard or mouse, fingerprint reader. There's always something.
We People who have been using linux for years are already used to it: google for a couple of minutes, open the terminal and copy/paste a bunch of commands. Sometimes it works, other times we compromise by not using that feature that doesn't work.
For people used to Windows this is very painful.
So yeah, I can imagine how people coming from windows might be frustrated with that.
* Plug in monitor 1
* Plug in monitor 2