I just wanted to add a final note to my string. This morning our two Galaxy A50's both received the long-awaited Android 10 update. The firmware version is now A505USQU5BTD1 with UI version 2.0. This update corrected the issue we were having with our MMS- we are now able to send and recieve MMS messages without toggling the WiFi.
Hopefully an update is forthcoming for the two Galaxy s8's our kids have as well- they are still experiencing the issue.
My thanks to Xfinity and Samsung for correcting this annoying issue- we appreciate it very much!
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