Interesting. I use Brave but those are one of the few things that get through. I presumed they were served from the forum itself which is why I mention it politely rather than try to block them.
The banner right at the top did go away after being shuffled for a while but I currently see three banners near the top of each page, one for jlcpcb (which is really annoying), one for lattepanda (which might be annoying were it not for jlcpcb doing all the attention-grabbing) and one for multimeters which is perfectly fine and sociable because it doesn't move.
It used to be possible on firefox to have animations run just once and then stop, which was a nice way to de-fang these things. Much less irritating. I don't know how to do that currently. However I think changing pages would make them run again.