Periodic reminder, in the US you can get flat-rate unlimited unthrottled mobile 4G/5G internet for $400/$500 a year from https://calyxinstitute.org, and they now have a bring-your-own-device option
At rural music festivals where large crowds descend on limited local cells...
My Verizon & T-Mo phone hotspots show de-prioritization effects on tethered devices (unless I change default MTU on client devices).
T-Mo Home Internet cell modem/router/AP box shows increased net/packet latency, but speed tests only drop a few percent.
Insty backed by T-Mo (Insty's business plan SIM) remains solid at its lower rate until fest attendees use more than the 300GB quota.