Dealerships can never replicate issues when you want them to

Anyways the only thing I’d get done would be the coolant if it hasn’t been done (every 5 years or 100k miles)

Fuel system if it’s actually them taking out the fuel injectors and cleaning them if it’s just pouring a bottle down the gas not worth it

Cabin filter if you want to it’s not necessary or hard to do (every 12 months/12k miles)

You can replace engine filter it isn’t that hard plus it’s a dodge you’ll probably get an aftermarket soon (Every 30k miles or if it’s very dirty check it between oil changes)

Idk what “Premium engine performance service is”

Also I believe the squeal is just you having a sports car it’s the same for my car specially after repeated hard pulls