SwiftBackup! It helps me a lot every time I need to try a new custom ROM.

Pornhub ◖⁠⚆⁠ᴥ⁠⚆⁠◗

If you can't believe it, you need to learn more about FOSS software. In other words, what you're describing is PEBCAK.

total commander (file manager + ftp/sftp client) for android,

openvpn

KiCad. A full suite of software for full PCB (printed circuit board) design and development. Super cool software.

Tixati for downloading torrents

Warpinator. Use it all the Time, easy file transfer without and fuss.

Want to transfer files between your PC and Phone? -No Problem

Want to send some Screenshots from your Steam-Deck to your PC? - You can do it too.

For me, Reaper without a doubt. I've been doing audio work for the better part of a decade now it's become my main DAW of choice for the last 5 years. Technically a license costs you $60, but every feature is available in the "trial" version that never expires. SWS script support and the insane amount community skins/extensions makes it well worth the $60 if you plan on buying. I've replaced many ProTools with Reaper setups.....