I don't want to want this, but I do.
Only semi-related but what I really want is for easy windows apps on linux that work without fail. I prefer my linux box and generally hate the windows ui (don't get me started on windows settings or audio). I've tried switching to linux full-time but I don't know if I can hack it. Games are 90% there and I can do without the few that don't work with proton, but there are just too many apps that only work on my windows side that I just don't think I can dump windows.
Wine gives me inconsistent results and breaks for just about anything that needs registry access, not to mention its pretty complicated. I'm hoping to stumble on some tool I've been missing out on that makes everything easier because I wan't to run linux as my daily... I just don't know if it is practical.
Which apps? Not that it makes a difference for this conversation, but I'm interested in keeping up to date with what the "killer apps" are that keep people from switching.
If you're talking about Windows apps that keep me from switching to Linux, I have an oddball one: it's a keyboard re-mapper that I wrote back in Windows 3.1 and still use. It does the same re-mapping in every application (except for some reason in Microsoft Edge). It's not a simple 1-for-1 mapper, which I think is readily available in Linux.
At the simplest level, it re-maps ^H to the left cursor arrow, ^N to PageDown, etc.
But it gets more complicated: ^D maps to seven down cursor arrows (i.e. it moves the cursor down seven lines), ^U in the opposite direction. ^C usually (more details below) maps to ^Left (i.e. go to the beginning of the word), Shift-^Right (select to end of word), and ^C (copy selected text). (Notice the final ^C does not cause recursion!)
^A once goes to the beginning of the line, ^A twice goes to top of screen (I forget the exact keystrokes it emits, but this works with most apps), and ^A thrice goes to the beginning of the file. Analogously for ^E, but end.
Finally, it has two modes. In the normal mode, all the cursor control keys do their normal cursor movement thing. But type ^Q, and the cursor keys are now in select mode: ^H outputs Shift-Left, i.e. selects the character to the left, etc. Drop out of select mode with ^C (copy selection--different from what I described above!), ^X (cut selection), or ^Q again (do nothing with the selection).
I'd love to be able to reproduce this kind of behavior in Linux. I'm sure it's possible, but I don't know enough about keyboard re-mapping, or keyboard drivers, to do it.