It is fixable. Same thing happened last year.
Fixed here:
and here:
Fanboyz described the fixes:
Seems to be the Brave Ad Block Updater component.
Would appreciate it if the same workaround could be applied again, if it’s not too much effort.
The problem is it’s that it’s not even just a matter of not using Youtube.com, it completely crashes out on ANY website that embeds a video (and crashes before you even know it’s there).