Glad I have firefox as well but also looking forward to a cool new project called Ladybird. https://ladybird.org
Not sure if its the right one but glad there are more projects out there trying to jump into the game. (I know extensions are a long way off for it but i see it as hope.)
Also please consider running pihole or adguard home. Or any other full home DNS add blocker. It will help.
Kodi has the IR stuff built in from what I remember. At least on windows it did years ago. You just need a “media remote” at one point called windows media remote. It’s a usb or receiver with a regular IR remote.
After a quick google here is a list I found.
https://www.comparitech.com/kodi/best-kodi-remotes/