[karlgkk]

> Carriers supposedly prioritize their own customers

They explicitly do, even among their own customers and plans. If you Google the carrier name plus QCI, you’ll find tables where people have documented, which plans are in which priority group

[wolvoleo]

Yes. Basically: you get what you pay for.

I've also seen MVNOs be denied frequency bands or cells that were in the highest demand, leading to worse connectivity despite being on the same network.