So, I’m not any kind of font expert, but at the basic level you have serif and sans-serif, and mono-spaced or freely spaced fonts.

Mono spaced fonts have every character occupy an identical amount of space. Freely spaced fonts (I think there’s a more correct term for this) don’t; the space occupied on the line by each character can vary, meaning you don’t get awkward gaps. Mono spaced fonts are going to give a very “Old school typewriter / computer text” kind of feel that’s rather at odds with this clean, modern looking UI, though they are more readable.

Serif fonts have those little, kind of, cross pieces on the end of every line. Think “Times New Roman” and “Courier.” (Times New Roman is a freely spaced font, Courier is monospaced). Sans serif fonts don’t. Think “Arial”. Given that everything else in your design is extremely clean and minimal, serifs, in my opinion, add a kind of business to the look that detracts from it. They also tend to, again, look old-school, or even archaic. Courier is basically the classic old fashioned typewriter font, so if you’re evoking that (and a monospaced serif font is definitely going to evoke that) then you’re kind of mashing steampunk into the middle of your Apple store.

I’m not nearly well versed enough to offer any deep cut recommendations here, but the Ubuntu font is FOSS and has a nice rounded look that could probably work well here, at least as a placeholder. Noto and Roboto are also FOSS (if I recall correctly) and both have a nice clean look.

Edit to add:

Ubuntu Sans

Roboto Flex

Noto Sans

Second edit:

With the rounded look of everything, a rounded font might also play well. Not sure on the licensing on these, but they’ll serve as examples of what I’m talking about.

Nunito

Chiron GoRound TC

Quicksand