Thing is, not that many apps use Google Play Services. In fact, afaik F-droid explicitly forbids the use of gsm. I’d understand blocking sideloading of the apps that do use it, but if they are going block every single one, that seems a bit draconian and spiteful. Like I understand why they would be displeased with the harsh treatment they received from the US, but I don’t think revenge is a good reason to hamper the user experience.