Has a M.2 slot doesn't mean you can put any M.2 ssd in it, especially M.2 2280 is the most common size and easily can buy on store/online, smaller than that is mostly for OEM devices and you don't have many choices available.

Not about the M.2 slot, but a shout-out to Explainingcomputers. I graduated as an embedded systems programmer, but changed careers along the way. This channel reignited my passion for embedded systems and now i'm an enthusiastic hobbyist again.