Linux

I understand. Maybe two things to consider:

• It will depends how you installed your apps, but I have file containing a fe useful instruction in case I need to reinstall my system, one of them is just a 'sudo apt install followed by the name of every single app I want to use'. I only need to copy and paste in a next terminal window to gat all my apps installed. All except the few that I don't install using apt, say the few appimages I also use. For me it means three more apps, so it's no big deal to download them by hand ;)
• Most user settings and configuration should be stored somewhere in you home folder (for example, I know there many settings stored in the .config folders, others (related to the system and the DE you're using maybe stored somewhere in .local, all my custom fonts are stored in ./fonts, and so on. I'm sorry, I'm no expert so I'm not very precise). All of that to say: by baking up your home, you probably also are backing up a lot of your configuration and tweaks.

I have no idea how those settings are portable between two completely different distros, but I have once reinstalled my system and got most of my settings instantly back just by copying my home folder over to that fresh install. That plus the single line 'sudo apt list-of-all-my-apps' I was almost completely operational in mere minutes, including all my customer menus, panels, text size, themes,... The one thing I remember not working from that backup was my SSH keys. No idea why.