I also use a Pixel phone, though I use LineageOS so I feel less tied to Google
On android I use either Brave or Samsung Browser.
Another difference in the scroll is that it has much higher friction (deceleration) in Firefox than native Android.
[1] Firefox 103.2.0 on a Samsung S20 with latest updates.
And it is not like Mozilla isn’t aware, I believe there are 2-3 open issues on Bugzilla, years old, that have just been left to wither.
Hell, you can install Firefox Focus (which is a ‘private mode only’ browser) and that does have built-in adblocking. More perversely, you can use it as a content blocker for Safari.
(No, other browsers using Safari’s engine do not inherit the content blocking)
I repeat: Mozilla is willfully choosing not to protect iOS Firefox users from ads. Plain and simple.
There are browsers for iOS with really good ad and tracker blocking. I use Orion, whose blockers are based on uBlock.
I forgo the on-device ad-blocking and use DNS blocking. It's a decent catch-all for most things I'm worried about.
NextDNS is one of the better hosted DNS blocklists, IMO