A sample journey when trying to install software:
I guess it mostly depends the type of apps one wishes to install.
On Windows: find the msi or exe and be done with it.
Linux is certainly not perfect but:
sudo apt install list-of-all-the apps-I-needmakes it so easy to install all my apps on a new system. And for the rare few apps I need a more recent version than the one that is provided through the official repos, I can justflatpak install list-of-the-few-flatpaks-I-want. I don't even have to type those commands, I keep a text file listing them and all the apps names.- coupled with the ease of making backups (and of restoring them), just with with a couple command lines (be it my personal files or settings and config files)...
Well, that plus the freedom I have to do whatever I fancy with my OS, without its maker having anything to say about it, make it so much better in my eyes than the proprietary OS I used to use (I was a Mac user more than I ever was a Windows user, but it's no secret Mac apps were even simpler to install than on Windows)
I also use a PPA for a rather niche app, never had any issue with it.