

Your registrar (the place you buy your domains) is where you update your nameservers. If Cloudflare have locked you out then you won’t be able to change them. Other standard registrars will have far less cause, legitimate or not, to lock or disable your account, since they don’t host/proxy your content.
I wouldn’t buy domains from Cloudflare from a risk mitigation perspective. At work I direct six figures of budget their way annually, but as a free-tier customer in my personal life I don’t trust them not to fuck up at some point and lock my account. If I register my domain elsewhere I can bring myself back online by moving the nameservers. If it’s registered at Cloudflare I’m fucked.
I’m still in the middle of a K8s migration. It’s overkill for a home user, but I want the upskilling.
I’ve got a QNAP NAS with self-managed linux for storage, and a MS-01 with an RTX A2000 for compute. They’re connected over 10Gb SFP+. I’m more than half way done, especially considering I mostly know what I’m doing now.
I still need to figure out the idiomatically right way to schedule pods with their storage, but I got GPU workloads going recently. Next up is migrate the last of the docker-compose from the storage node.
Stick with it for now, just be aware they need to make money at some point.