I guess Brave is incompatible with some sites you regularly visit.
When I buy things online, I still stick to Chrome or FF. Since I also always default to Incognito, so not very certain that Brave browser won't encounter problems. By right it shouldn't. , but I don't want any loading issues when keying in and confirming credit card transactions.
I don't buy things online often enough for it to pose a problem when I have to switch. Right now, don't even have Chrome installed. Firefox is enough for my needs. Plus, Chrome likes to auto-update in the background, and that action seems to eat up some CPU, and it seems to always do auto-update when starting up the laptop. I could find a way to disable that, but its always possible that the auto-update in the background is defaulted again when Chrome updates to a new version.
Firefox default behavior is to check new version and update on opening Firefox. That one more clean lah for me.