@appsI guess that "Popular" timeline is hidden in the side menu and I can't bring it to the bottom panel (instead of something else I don't use).
Apart from that, I am still learning and exploring, and I feel satisfied!
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.