Is dns over https something i need to worry about?

if you'd rather it was on than leave it to chrome's guess: settings, privacy and security, security, use secure dns, and pick a provider. windows 11 can also do it for the whole machine from the adapter's dns settings, which covers apps that aren't browsers.

It encrypts the lookup so whoever runs the network can't see which sites you're asking for. chrome and firefox turn it on by default with some providers now. worth having on public wifi. the one catch is that it bypasses filtering done at the router, so if you use parental controls set at that level, it'll walk straight through them.