I am in a similar boat. Since you have Tidal might want to look into Tidal-dl to “backup” the things you especially like in high quality.

Tidal is actually not too bad, and it pays artists more than other services (not a lot, just more) but I do expect it to go downhill/away eventually so I make a habit of downloading what I can and supporting the artist directly in other ways.

How is this possibly an example of that? Can you explain why?

because there’s not enough space on one M.2 slot to fit two M.2 ssds

It’s not extremely uncommon for motherboards to put m.2 slots on the rear side these days, which opens up a lot of space.

A possible workaround: M.2 to PCIE adapters are pretty common. I could use one of those combined with a PCIE to multiple M.2. But this feels hacky and I don’t love it.