I currently use TinyWall Firewall, it works very well, it’s small/portable, no complaints I even donated to the Dev but I would really prefer open source, also it needs to be user friendly like TinyWall so my non-tech family members can/will use it like they do with TinyWall.
This is a flawed argument, the opposite of:
Just pick a target, then use whichever tool gets you closer to it… and I think you know it, no need for a rant.
(* there are actual tools to strip and reset the tracking and ads in Windows… obviously for people who accepted to get early updates, install the “Preview” versions, and haven’t read that it means they’re now betatesters with telemetry enabled 🙄)
PS: settling on a “single GUI”, is kind of ironic given the multiple GUI versions of the control panel in modern Windows.