I made switch back to Windows some time ago, but I notice I use open-source programs anyways and I do not enjoy modern video games which is why I think about switching back to Linux. Below is two issues holding me back from switching right away;
1# What desktop should I use… I used GNOME before but because NVIDIA card it did not perform well. I also tested KDE but it was too complex for me. Should I try Elementary OS, Budgie, XFCE or Mate ? I look for something simple, modern, customizable. I do not have time to test what fits me blindly.
#2 Is there alternative program to simple wall (pp) ? For by default blocking apps from connecting to the internet.
I can’t comment on #2, but in so far as #1 goes I would say that if your looking for something ‘modern’, Xfce would be a waste of time. I love Xfce, I was a long time user, it does some things I like really well, for instance Thunar can be programmed with terminal commands for it’s right click menu from within it’s preferences, which is something I miss to this day. However ‘modern’ is not a word I would use to describe it… Xfce is effectively just the best of the desktop experience from a decade or two ago (which is not bad were that what you wanted).
I wanted something modern too, which eventually landed me on KDE. In terms of modern features for me nothing else approaches KDE Connect (even though I can’t reliably transfer files with it without them becoming corrupt), though you can use that in other DEs I’m told. KDE’s complexity is from is customizability (which is a bit too much). I would argue that if you can get it set up the way you want it, most of that complexity can be safely ignored.