This can definitely be the case. I had a phone that for a year would drop out frequently doing cellular data. I assumed my provider was throttling me. Upgraded

This can definitely be the case. I had a phone that for a year would drop out frequently doing cellular data. I assumed my provider was throttling me. Upgraded my phone and the problem went away; likeliest culprit was the cell circuit in the phone was slightly damaged and running full data comms was causing it to reboot.