My US bank removed check deposits from the browser about a decade ago, and I haven't met anyone who can use Zelle without an app.

That is a far cry from the original comment "banks have never accepted browsers".

I have used zelle many times from the browser. It's been a while, so maybe that has changed, though. I never even tried to deposit a check from the browser or an app, so you may be right on that point.

I have 3 different banks (well 2 banks and a credit union.) I can use Zelle in my browser from all 3. I don't even have the app installed for 2 of them.

Hmm...I wonder if it matters which browser is being used.

In my country almost all banks removed their web apps. They existed like 15 years ago, before smartphones became widespread, but nowadays very few banks offer web apps, only mobile apps.