VoIP with t-home internet

I have used Ooma home VoIP for several years. During Covid with cable internet (very fast speed) I can major issues. The problem was jitter and the cable node being bombarded by Zoom from Home school kids. Everyone focuses on the download and forgot the upload. Covid seemed to open some eyes. 
I was concerned about VoIP as that's our old home phone (yeah, I've had a cell phone for 35 years, too). Ooma specifically said it works with TMobile. It does. Better than 400MBS cable. I can't speak for Magic Jack. Ooma requires a Telo device (about 80 bucks on Amazon) and the service is "free" (you pay taxes which for me in PA is about 7.25 a month). I had Ooma Premier for several years for robo call blocking and caller-ID with name and free second line. I just dropped it. Same or less robocalls. Uploaded phone book to Oooma so we get everyone we know caller ID name. YMMV. 

Forgot to add---Using the Arcadyn box connected by ethernet to Google Mesh WiFi. I connected the Google Mesh main node by ethernet to a big switch, and my VoIP box is all ethernet to the TMobile box. VoIP really needs ethernet. Ooma even likes you to connect to the cable modem directly (could do that via the second Arcadyn ethernet port but why bother, works great now). 
I've only been on TMobile home internet for a couple months, but it has been perfect so far. My connection is modest at best, no great cell coverage and all the numbers on my phone app are mediocre. However, the service rarely drops below 20MBS down, 3 or so up (usually faster) and I have not noticed any issues streaming or using the phone. I am not a heavy streamer (at all) so my speed needs are pretty low.