@thomasfuchs the mixed realty portal is still working and hasn't gone away. It comes with a desktop feature which allows you to open up as many screens as your heart desires.
here: https://apps.microsoft.com/detail/9NG1H8B3ZC7M
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.