Good grade dogfood is nothing like burgers and ice cream though. There’s not enough information of the diet OP uses so no comment on that, but it is easier to make dogs sick by feeding them only pure meat than with just kibble. Obviously don’t buy the cheapest processed shitty dog food, but please also do consult a vet and do some research before trying to feed a raw diet as well. Wetfoods and kibble tend to have the vitamins and fibers and all that added, but feeding a raw those need to be considered more.
And lapphunds 100% don’t need fancy meats any more than other breeds - nekin on tosiaan vaan koiria eikä mitään ihmeen taikaolentoja.
The frozen stuff can be better for their teeth at least. If they have to chew and work more to eat it, that cleans the teeth better than just wet floppy meats.