reddit.com: Firefox on Android fails to Autofill

I have the following configuration: Pixel 9 Pro, Firefox 148.0, 1Password 8.12.4

In Firefox, most sites for which I have logins will populate options above my keyboard and they usually work fine.

However, when I visit "reddit.com" and go to its login page, I never get any autofill options.

By contrast, opening the same page in Chrome immediately presents my autofill list perfectly.

Now that I think of it, there have been a few times that autofill didn't appear and I just assumed it was due to some other factor. But I wonder if these, too, could be browser-related?

Anyone else have the same problem?

Is Firefox autofill known to be broken? Is there a known issue with "reddit.com" specifically? Hopefully 1Password support can reproduce the problem and pinpoint the source.