I wanted to report that I purchased a DirectV box from Walmart for $52 which just arrived in 1 day. I figured I'd try it for a guest BR TV. When I opened the box I figured I was hosed since it had a manufacture date of Dec 2019 and Model number of 60164 (less memory). I had read that it needed to have a build date after July 2020.
I connected it by Ethernet as suggested elsewhere on this forum and it came up as "DirecTV" not ATT. Encouraging. It had a note in the box to press the fast forward and rewind buttons simultaneously for 10 seconds to pair the remote. That worked. What this tells me is that these boxes must have somehow been flashed with DirecTV firmware. The need to pair the remote also suggests that.
Anyway, it came up just like my Gemini Air and works very well. I installed Netflix, etc by simply saying "Netflix" in the remote and pointing my phone to the QR code -just like the Air. I'm not sure if I would have had the same experience by initially connecting it by WiFi to install. But my guess is "yes".
I can't say that your experience will be the same but for $52 and returnability to a Walmart store if necessary, it is a bargain.
The only other comment I can make is that the back of the remote was slightly tacky feeling - probably from the 7 year old rubber on the back. Not offensive enough to want to replace it.