This current update, 23 3 23, has made the situation for ‘lost connection’ much, much worse on the Xbox One X, can not get into the game at all, just drops back to title or crashes with the lost connection message.
On the series X it seems to have improved, loading seems better but it is still like watching a slide show waiting for the base to load.
New hotfix available.
Patchnotes:
Not sure if it is the latest patch but seems to made some of the achievements not unlock when meeting the requirements. hopefully gets fixed next time out