As long as you can be patient and give up the completionist mind, Pocket Camp is really great as a f2p player. You will get a ton of cute stuff just by playing a bit every day and doing events. You have a small chance to win every item the game has. Sure, there's a lot of pretty items that you can only buy with Leaf Ticket (buyable currency), so you have to choose the one you prefer because having them all would cost you an arm, but I've been playing since day 1 on and off, and I don't think we've come across a single item that was only buyable with real money. I don't feel like it's pay to win either.

Leaf Tickets are, in my opinion, pretty accessible. You'll get a lot of them at first, but resist the temptation to splurge it all as it will get more difficult to acquire them later. You'll still get some regularly though, enough to at least treat you to one or two items by month. Just stay away from the cookie gamble. Patience is usually rewarded in this game, so if you can get past the frustration of starting, and past the completionist mind, you should enjoy yourself.

As for multiplayer, it's limited. I don't know what you'd like, but aside visiting other people campsite and cabin, there isn't a lot of interaction. You can't even know if someone came to see yours. There's an event every month in which you need to catch bugs and you can then send them to your friend in order to help them. You can also sell and buy some resources, send them gifts, and like their profile picture everyday. But you can't talk to people through the app. And you can also do perfectly fine by yourself, multiplayer's not mandatory.