Maybe I'm being too cynical, but as someone who follows this industry fairly closely I haven't seen many companies do something actually that innovative or new. Most of it just seems to be a difference in distribution channel e.g. a website.
This has happened before: for example, insurance used to be sold in-person, then over the phone, now online. And that is innovation. Selling it in-person was very expensive.
But it is also true that none of the companies mentioned in the OP have really innovated anything. The innovation was finding a new way to justify massive volume growth that would later turn out to be unprofitable. This happens every cycle.
The distribution method wasn't really novel either afaik. Maybe having an app makes your product a bit cheaper but it isn't really going to be a massive difference to selling over the phone. In particular, with high-interest loans analysing credit quality is probably going to be more important. But idk (I have looked at these businesses and it isn't something I would ever get involved with: high-interest, P2P, all scams).
I have signed up for some neobank accounts out of curiosity and there’s no phone number just email and chat, and when I’ve asked a question it’s taken at least 2-3 days to get a reply on average.
Reducing cost might be good for the business but as a customer I get no additional benefit (my Chase account is free) and reduced quality of service. Why would I want that?
Similar situation with UniCredit (of the largest banks in Italy) and it took me ages, was really close to give up. On top of that, their email support is pretty trash...
Also I signed up for Revolut in the US and not sure why it’s better from a fee perspective. It charges a percentage fee for ATM withdrawals which I’ve never seen before and frankly insane.