You don't have to. Just replace Manjaro mirrors with the Arch ones, and you're good to go.

KDE 6 has already been released. Please migrate to EndeavourOS.

Use NixOS if you want to use use strictly pre-installed software.

You can rip music from Spotify using Soundbound.

Just copy all the source code to one giant book and distribute it through Tor.

I don't think so.

Lollypop is better.

Don't use webview.

Set up NextDNS.

Never tried it. But I use Element, which is based on the Matrix protocol.

Just use either the web version, PWA, or Thunderbird.

Switch to Android and use Soundbound to download songs from Spotify. I won't recommend the player since I would be downvoted to hell, but my personal favorite is Samsung Music.

Just use a browser. Or install Waydroid and install Eternity to it.

Android = Linux.

Gives me madaidan vibes.

Just don't package it. And if you have to, sandbox it in Firejail or in Bubblewrap. Or just make Snap out of it.

There is no better phone than Pixel. It's because Pixel has the support for the best alternative ROMs like GrapheneOS and LineageOS. I have a Samsung A53 5G phone, and I have to use Odin to flash stuff.