No. I tried every trick I found online, short of buying a 3rd license of minecraft to install on my wife's computer to debug this issue
We were both on the 1.19.5x before the 1.19.60 were pushed out several days ago and we both updated to 60. Everything was working. The day after the update to 60, we encountered this issue and have not been able to resolve despite we can see each other's computer on win 10 explorer as network computers. We see each other as offline on xbox game bar. Is it possible that Microsoft messed up their updates? I've never used xbox game bar but out of frustration of no solutions I tried that. Nobody can see nobody else. I have two computers and both behave the same. I only occasionally use my second computer to play minecraft and when I was playing we were able to play together. I have a regular windows account and my son has a minor account on his computer. I'll have to test the xbox game bar thing with my wife's computer to see if there's something very wrong with how gamers see one another.
OK, I resolved the issue last night. So the symptom I want to mention was that we both displayed our xbox game bar and both see the other party as offline despite neither of us is using appearing offline and we both appeared online with a green dot at our own icon.
So then I thought, what if something is wrong with the friendship settings which we checked and rechecked? So we both unfriended and then re-friended each other. Bingo! I could see my son's game and my character's inventory seems good.
So the solution is to unfriend and re-friend.
What else we tried that didn't work in case you wanted to try as well:
Install the preview version on windows
Try to add each other as friend in preview version
Use a win 11 computer in the mix
Did you have a similar problem you solved with this solution? Did you have to unfriend all your LAN game friends? I'm just curious to know.