Hello, I am trying to install Minecraft Bedrock on Arch Linux to play cross-platform multiplayer with my friends. I have heard about the mcpelauncher but that requires to have Minecraft from Play Store, and I already have bought Java and Bedrock for PC. Can I do anything to actually play Minecraft Bedrock on Linux?
Sadly no, the PC Bedrock version is very much Windows only. Your only options are to either use the Bedrock Launcher which as you know already requires the android version, or if your goal is to play with friends to use Waterfall MC. Its a server mod that allows both Java and Bedrock players to join the same world
You can do one thing and buy it for Android and then run it under either mcpelauncher or waydroid. Sure paying for the thing multiple times sucks but welcome to multi-platform propriety software. At least I only payed for it once for the whole family.