Matrix is also foss but it is safer and decentralised. From my experience revolt is more buggy and is hosted on one server which means that if that server goes offline then no one can use revolt, if one of matrix servers went down people could still use it by switching instance
Finally I have something to do with my pi zero 2w also I didn’t know that I could install WiiU os on Wii… do you have any guide for that and know if Wii could run WiiU games?