I'm actually a huge fan of "unlimited slow speeds" as a falloff, instead of a cliff. Aside from the fact it allows you to work with Starlink to buy more fast speed, it also allows core stuff to continue to function (e.g. basic notifications, non-streaming web traffic, etc).
Years ago, I picked cell carrier because of this. When I ran out, it switched to O(200kbps), which is fine for email, basic web search, etc. It was actually a bit ironic that, at the time, you could burn through the whole high-speed quota in seconds or minutes, if you went to the wrong web page. Most carriers would stop or bill you an arm-and-a-leg after.
At least it's 2GB/day now. And my 5G roaming is off...