Are you still using the official Mastodon app? You don't have to!
There are loads of brilliant third party apps which have more features than the official app.
Unlike Twitter, Facebook etc, Mastodon uses open standards, which means third party apps can do everything the official apps do and more.
There are links to third party apps on the official Mastodon site, just scroll down past the official ones:
➡️ https://joinmastodon.org/apps
Click on Android, iOS etc to narrow down the app selection.