Help Me Understand: What's the Deal with Wahhabism and Salafism?

As-salamu alaykum everyone. I'm a young Muslim, and honestly, I keep hearing about 'Wahhabism' online and I'm like, what even is that? I had no clue it existed before, and now I'm just confused-is it good, bad, or what? When I looked it up, I found out it's about following the Quran and Sunnah really strictly, but then some people mention it adds extra rules, especially for sisters, and that doesn't sound right to me. Totally lost here. Also, there's 'Salafism'-I heard it’s cool because it focuses straight on the Quran and Sunnah without sticking to one madhab, but then folks are talking bad about it too. I'm genuinely baffled again. If any of you with solid knowledge could break it down for me, I'd be so grateful. Jazakallah khayr!