Welcome and bet you are enjoying your new pup!
Feeding is one of the single most subjective and disputed areas of dog and cat care. It is also one in which people with no background or real knowledge in nutrition hold forth, sometimes in a dangerous way, as to what is right and wrong. So beware about reviews and opinions in this area especially the 'there's only one way to do things' points of view. Just pick your way with caution and don't feel too intimidated.
Personally, I think dogs will do fine on most commercial foods and they are mandated to meet minimum nutrition standards, but I do think supermarket foods are a bit substandard (eg they are cheap because ingredients they use are cheap). On the other hand, I'd never pay some of the premium prices for the most expensive foods and find what many advertise as 'natural' or wolflike' diets laughable -- I've never heard that wolves dine on seaweed, cranberries, etc etc (check out some of the ingredients lists on these foods and they sound like an expensive trendy human restaurant!
) . But that's me -- others feel the cost brings benefits they value.
I like a good quality, medium-priced dry food supplemented with some homecooked meals, some occasional raw meals, and various additions to make meals more fresh, balanced and interesting (fresh fruit and veg in particular is beneficial to dogs). I think it is questionable and possibly detrimental to oversupplement.
There's lots of info on feeding and also many suggestions for adding items or doing homecooked or raw, in the Library section.
I like to rotate kibble types (once one bag finishes, not at the same time!). So no reason you cannot try a different quality kibble next bag around.