Unable to connect Chamberlain garage door opener via 5g internet

This 5G internet was perfect for my very rural situation and in most cases, it's been great… However, this garage door situation has been a nightmare.  I've contacted both companies on several occasions and so far as I can tell, it will never be addressed. I tried again today (even with a repeater) and this absolutely does not work. Oddly, any P2P online games are also blocked, (like Switch Sports and Mario Kart 8) which is another frustration for my family. All of these, even the MyQ will work on my cell's hotspot, so this is even more frustrating.  I'm going to test ATT home 5g and/or Verizon (when available) and make the switch if this isn't going to be fixed.