Annoying. Don’t let the industry autoregulate, it’s always lukewarm and ineffective.
Legislate. Ban underage gambling.
This is not a complicated issue, at all, the only barriers are lobbying and corruption.

Meta will face daily fines of €89,500 if it doesn’t comply with the order.

Bet they can write it off as expenses.

on sale
They sure can smell an opportunity.

Depends what you mean by security.
If you mean privacy, no such thing exists. All browsers snitch on you, and trying to actually have a private life will land you in jail soon enough.
If you want to do online banking, any of the big three will do if updated regularly.
I’d choose firefox as a symbolic protest against tech oligarchy.