Hell yeah! Welcome!

Lemmy is a lot of Linux nerds, trans people, leftists, and people who are really mad that those people are here lol

The block button is your friend, curate your own experience, and enjoy! Lemmy, like any internet forum, can be a bit toxic. A lot of that depends on what instance you're viewing it from, so don't be afraid to instance hop a bit until you find a community you enjoy, and is federated with other instances that have content you like.