Tl;Dr: be nice, engage in content, and don’t troll, and most people won’t be bothered.

It likely won’t annoy anyone unless your content itself is actively bothering people. A certain fungally named user posts and comments constantly and I typically enjoy their content, while another brachycephalic canid religious savior does the same but constantly stirred shit so went on my block list. Content good, melodrama bad. People will like you if you are reasonably kind, respectful, and genuine.

Usage time really is a personal choice. I track my usage and keep it to 1.5 hours (2.5 on occasion, like if I’m sick) or less daily. Otherwise, it starts to adversely affect my mental health and personal relations.