I still have a Macbook Pro I bought 10 years ago(it's been running Linux for 8 of those years). It has Fedora 38 on it now and it still runs great. Serves OK as a backup laptop if I ever need it.

I have a Lenovo laptop these days. Much better to type on IMO.

A non-Android based phone would be great, but not really realistic in the short term. Quickest root to having a working phone(capable app ecosystem etc) is obviously using Android. So something similar to what Solana mobile are doing https://solanamobile.com/ . See how that does and learn and improve on it.

Leaving my original BTC in mtgox :(