It's the almost same thing like Firefox browser, but you can also browse onion links with Brave browser (not recommended to be used as replacement for Tor browser).
I personally wouldn't say that I don't know how to operate it but I am just lacking experience and somehow feel more comfortable browsing clearnet websites when handling money/bitcoin.
I do use Brave Browser aswell but don't seem to be able to load up the onion link there for whatever reason.
I can confirm that it is accessible for me again, thanks for the update!