MC on iPad

hello 🤍 I have two questions about MCPE since I’m thinking of buying it, I would be forever grateful for anyone who can answer them. 1) can I play Minecraft on my iPad/iPhone while using a ps4 controller? And if yes how do I do it? (I haven’t used my ps4 in years/ it’s broken) I’ve seen comments saying it doesn’t work or it won’t allow them to jump just walk, so I was wondering if I can even play with it. 2) can I play servers with people? Whether it’s a public one like bed wars or just with other players? Because I remember a few years ago I never even understood how to play public servers, I just assumed I had to pay or it doesn’t even work. And if yes how can I do it?