I agree. I've been a T-Mobile customer since they were called VoiceStream. Up until [what feels like] five years ago, I LOVED them. Like, I almost felt an allegiance toward them, because they were one of the few cool companies that actually seemed to care about customer experience.
But, new leadership --> new direction, no more US call centers, the "forever plan" was bullshit... Now, I fucking hate them.
Although, I do have to admit, while I was spending time in the High Uintah mountains this past week, it was awesome getting 15 Mbps from my free Starlink access. But, that's more thanks to Starlink than T-Mobile -- at least, as far as I'm willing to attribute.