Shingeki No Kyojin Bertholdt - Tumblr Posts

Questions for the AoT fandom

So I watched Aot in 2020 then caught up with season 4 a few days back. I'm now back in fandom and I don't know if it's because I was gone for a while but I have a few questions. Just reply in comments or reblog or whatever I just need answers. No manga spoilers, please.

Aot season 4 spoilers below

1. Armin is manipulative?? - How? Did I miss/forget something? Why is Armin considered manipulative?

2. Hating on Gabi- Even before I caught up with s4 I kept seeing people hate on Gabi and I'm still not sure why. She's literally season 1 Eren in female form and she clearly regrets her actions.

3. This one is probably something I forgot from s1-3 but why do people hate Bertholdt so much?

Yeah, that's it. Thank you in advance.