I've switched between Plasma, Cosmic, Sway, and Hyprland without any conflicts. For the Plasma 5->6 transition it did change my config in a way that broke Plasma 5 when I rolled back, so problems are possible.

Basically your mileage may vary.

hledger actually seems like it'll fit my use case rather well. Thanks for mentioning it!

A budget app. I'm tired of all the good ones being web apps that spy on you. Multiple accounts, recurring expenses, ability to set goals, there's a lot of features you can implement (or not) depending on how far you take it.

Currently I use https://play.google.com/store/apps/details?id=com.onetwoapps.mh which gets the job done but I want similar functionality outside of android.

Great game but you need to go in with the expectation of a Devil May Cry-like and not a traditional Final Fantasy. If that doesn't sound like fun, this should probably be a skip.