A bit late, but keep in mind, TMDB is not FOSS and is owned and run by a private company.
GreatBlue
I can see a bot doing it, behaving like the Piped-Bot with an explanation why it's important to remove the tracking.
You can 'future proof' your mail by using your own domain and use it with your proton account.
So if you want or need to change your mail provider or self host in the future, you just need to redirect your domain to your new provider.
It's a good bot ;-)
Nothing says "keeping all the malware out" more, than constantly having to remove malware ;-)
https://www.scmagazine.com/analysis/meta-uncovers-400-malicious-apps-on-android-and-ios-apps
https://cointelegraph.com/news/fake-trezor-crypto-app-removed
https://threatpost.com/click-fraud-malware-apple-app-store/149496/
For Android have a look at NewPipe. You can add PeerTube instances and watch there. But AFAIK it was removed from the Play Store because it lets you watch YouTube Videos without Ads.
Depending on where you live, you should be aware of the fox tapeworm. It's really, really nasty for humans and can be fatal.
Could you post the output of
ufw status verbose
?