The SSID and frequency was the same. Thank you for the suggestion.
Resolution...a very weird twist, but I'll take it. I had an old Note 5 laying around, so I installed the Smokin-It app and it recognized my network immediately (there's hope!). I plugged in the smoker and behold, it found the smoker in short order. I thought, well at least it works on an old phone and I'll just use it. Then I thought why not try the Note 20 again for grins and giggles. I still had to manually enter the SSID like before. However for whatever reason, it found the smoker almost immediately. Still scratching my head, but it seems life is good and I have a Boston Butt ready for some smoke!