I think you will get by by installing official releases by those projects.
I use a few Electrum Forks for Forkcoins (obviously only in a VM, I don't trust them).
For Monero, I don't need to keep it on mobile. That was only out of convenience, not because I need it on the go. So Monerujo won't work. I tried the full wallet once (on a server), and it's much more resource intensive than Bitcoin Core, so that's not an option either.
GetMonero has some options. As much as I like CLI, I won't use it for a wallet. That leaves Cake Wallet or Feather (or web wallets, but I won't go there). Cake Wallet exists in Beta for Linux, which leaves Feather Wallet. I'll install this (in a VPN, of course) and recover my private key from Coinomi.