I used to use it but then I just downloaded aria2 (what motrix is using) and it’s as fast as motrix with a little bit of configuration. aria2 supports both direct downloads and magnet links, it’s a command line tool though

cx file explorer

I wouldn’t risk it personally. If you want to de-google your phone you should probably unlock the bootloader (you’ll lose all data) and flash a custom rom

https://matrix.org/

Because you can install any apk you want so you can get apps from github/f-droid. on ios to sideload you need to do some stuff with itunes iirc