I use Firefox and Firefox Mobile on the desktop and Android respectively, Chromium with Bromite patches on Android, and infrequently Brave on the desktop to get to sites that only work properly with Chromium (more and more often - another whole separate can of worms too, this...) And I always pay attention to disable google.com and gstatic.com in NoScript and uBlock Origin whenever possible.
I noticed something quite striking: when I hit sites that use those hateful captchas from Google - aka "reCAPTCHA" that I know are from Google because they force me to temporarily reenable google.com and gstatic.com - statistically, Google quite consistently marks the captcha as passed with the green checkmark without even asking me to identify fire hydrants or bicycles once, or perhaps once but the test passes even if I purposedly don't select certain images, and almost never serves me those especially heinous "rolling captchas" that keep coming up with more and more images to identify or not as you click on them until it apparently has annoyed you enough and lets you through.
When I use Firefox however, the captchas never pass without at least one test, sometimes several in a row, and very often rolling captchas. And if I purposedly don't select certain images for the sake of experimentation, the captchas keep on coming and coming and coming forever - and if I keep doing it long enough, they plain never stop and the site become impossible to access.
Only with Firefox. Never with Chromium-based browsers.
I've been experimenting with this informally for months now and it's quite clear to me that Google has a dark pattern in place with its reCAPTCHA system to make Chrome and Chromium-based browsers the path of least resistance.
It's really disgusting...
Maybe. But in that case, that's not a great sign that Brave respects your privacy. But I wouldn't put it past Brave: they too are a for-profit and I don't quite trust them either.
However, the Bromite fork I run on my deGoogled phone almost certainly doesn't make any privacy compromises and it solves reCAPTCHAs more easily than Firefox Mobile.
Any Web browser that claims privacy and security while using chromium as its base isn't worth the risk, they may have implemented fixes and added their own proprietary code, but it's still chromium and Google most likely hides a bunch of stuff from devs so they can't mess with it.
Chromium is open source.
It's still made by Google, tho, so can you really trust that there's no hidden shit? This is a company that is trying to create a monopoly over website access.