You don’t need servers to have freedom in your computing, just do things locally on your computer. Even phones are surprisingly capable. For a great starting point, I’d recommend F-Droid (AppStore) in GrapheneOS (Android minus the Google viruses), Super easy to set up, and it gets you everything you need. Well, at least for me. There is also a good website called alternativeto.net, If you’re searching for software on a normal computer.

Edit: Plus, if you use Aurora (google play store access programme) with your Google ID, you have access to every paid program on your phone. Also, if you’re an EU citizen, they can’t ban you because they have been ruled a gatekeeper thanks to the DSA and DMA. MicroG, as far as I’ve read about it, since I don’t use it, is only needed for Google Apps, so if you don’t use them, why bother?