Dac & wire upgrades will mostly be meaningless until you sink some cash into treatments that actually work.
If you room doesn't start to look like some of these examples ...just forget it, i.e. if you are sitting in the living room and subject to divorce if the room starts to look like a high end studio, save your dac, wire, etc pennies and move on.
https://youtu.be/T-ydC9IB0G8?si=LztuIx3nWU-xoQAg
https://youtu.be/tKWAI21G0bc?si=lCtZXcw40hN0KAqU
https://youtu.be/btLXMzAq1_A?si=V0MenTkfVoetKEC0
If you are a DIY/handy guy with construction & lumber, it will be cheaper.
Even the bow wow bow wow moron in the OP's video is bound to have his pants blown off in one of my rooms... But, in whatever crap room he's sitting in with speakers stacked on pizza boxes, the realtek dac in his computer and an Aavik dac shall all sound the same, that would be his unfortunate reality, whatever...