Nothing does exactly what you are asking for, because every eboard uses some external screen for invalid move detecton(such as ignoring a check, or moving your king into check)
Help me choose an E-board
With respect to being able to see the clock: My guess is that you can only use the DGT Pi's clock if you are actually playing a chess engine running on the DGT Pi--but that the DGT Pi does not connect to Chess.com. And I guess probably the same is true to the Millenium 55.
So, be a bit careful about it. (Though it seems you are, so that is good.)

Thanks.. unfortunately seems to be the case. I’m not even leaning towards the Square off pro, not wooden, but large , a fraction of the price, and you can play live.
Looking for suggestions from the eboard enthusiasts here, what I’m looking for:
1- Large wooden board , 2” +
2- ability to play live on chess.com
3- ability to play live on chess.com and not have the screen up and still be able to see the time in the game.
I’ve done some research, it seems like the Millenium 55 and DGT with Pi clock are my options.
Millenium 55 checks off 1,2, but it seems there is no way to have only a clock showing on your phone/screen, you have to have the position up.
DGT with Pi clock seems to check off 1,2,3? But I haven’t seen recent posts if a full DGT board with Pi clock showing time works on chess.com . And chess.com has a page that only lists DGT Pegasus as compatible with chess.com… so that’s confusing.
Is there anything out there that checks all theee boxes?
Thanks in advance