Armcord is a discord client. Spacebar is a discord alternative (server+client)

Unfortunately no. At the time of writing this post, I didn’t know about this.

Also see Edit

Yeah, me too. But fuck him anyway

I wondered why it was made. Now I get it

You would want to setup a VPN server on your linux server and vpn clients on android and laptop. I’m not knowledgeable enough to help, but you can look into wireguard