If you are using a device which doesn't let you choose your extension or browser (e.g. iOS) I would recommend setting up a PiHole and WireGuard VPN server if yo

If you are using a device which doesn't let you choose your extension or browser (e.g. iOS) I would recommend setting up a PiHole and WireGuard VPN server if you have the expertise. These can be spun up for a few dollars a month on a cloud provider, or perhaps even at home if you have a static IP allocation. Depending on your device (e.g. a recent iOS device) you can then set up your device to only tunnel DNS requests back to the Pi hole at either your home or server provider. Admittedly this is rather involved, but works for all apps and webpages which rely on good ol' DNS to phone home and fetch ads.