Better resources usage when running all the apps as Flatpaks. Once you hit the close button, the zygote is killed, and you’re sure that web browser doesn’t run anything stupid in the background anymore.

https://super-productivity.com/

It’s all Electron though, so the Android widget sucks (won’t update way too often). But otherwise should be a perfect fit for you.

If your distro makes use of systemd, just use resolved: https://wiki.archlinux.org/title/Systemd-resolved#Manually