My US bank allows me to write checks (I don't actually have a checkbook, but I use bill pay which it will do electronically if it can and by issuing a paper check if not) and make various transfers, like Zelle. This has comparatively very limited payment capability. How would you pay your mortgage? There are even very strict restrictions on moving your cash out!
It does have a higher interest rate than some banks, at least at the moment, but you can get these rates from competitors without the other limitations.
In general all the current Apple banking offers (apple card, apple cash, apple savings account) seem pretty meh, and definitely far from great, much less "insanely great". The only Apple financial product I consider even worth remembering was financing your mac purchase back in 1984.
It's also a weird space for Apple to get into: it's highly regulated, has limited (at best) connection/leverage/flywheel with the rest of their product line or company capability, and doesn't even use anything apple-specific (not even their enormous cash horde).