I know it may be a lot of users’ first time using something that is decentralized like this. As I’ve been a Fediverse user for some time, I had been waiting for a big migration like this to happen as it usually happens with Twitter every now and again. Welcome to Fedi, hope you enjoy your stay!
There are some apps for Android, mostly in alpha/beta https://lemmy.world/post/465785
Liftoff looks nice