

Did anyone try CLI clients, like (neo)mutt for that? I expect it can be set up on a server (if we consider self-hosting) and do this job automatically. While all the AI thingy feels like magic, my practical experience shows that there are just some keywords or even just the sender, with which mails can be sorted.
Have you tried a non-tech solution, like putting the drives into some noise absorbing materials, or isolating the sound with the hard case, things like that? That may sound not really obvious, but my guess is that you can at least get some noise off with a solution like this.
I won’t go with SSDs for a NAS as it’s very expensive. But if money of no concern, that Beelink thing looks impressive.