If you’ve already read through this and understand what it means and are still worried about your privacy, I would recommend you switch to LibreWolf - it takes all the best practices of hardening Firefox for security and works out of the box. Unfortunately, this means you can’t play certain videos, it doesn’t auto-update, and some - likely many - websites will break/not work. This is the price to pay for true privacy. If you don’t want that, just keep using Firefox.
As someone who’s been wanting to test (and maybe move to Podman) in the future but hasn’t really spent any time on it, what features have Red hat removed from Podman?