Going to an integrated amp does not mean sound quality goes backwards. It may or may not and a lot of it is highly subjective. Like with pretty much everything.
You have to try it to know. Buy from vendors with good return policy and there is little risk. You can’t know for sure until you try. It’s nice not having to deal with all those separate boxes and wires. If you have older gear don’t discount that technology improvements over the years can make a huge difference. What worked even just ten years ago is not the same as what may work today.