Sons can be very different than daughters- just look at the differences while walking down the hall with open dorm rooms.
If your son is like mine he doesn’t need much furniture- it won’t get used. Ours has a high paying job and downsized to a studio apt. His eclectic furniture includes a large couch he acquired from us (we had it for our vacation condo- great for sleeping on), some cheap living room tables (again- saved from condo when we sold it and used for college apt) plus he took old end tables we were abandoning with our downsizing.
Of course his computer type electronics is state of the art. We also told him to buy a good queen sized mattress for its length and he has so far skipped any bedframe. Frugal kid doesn’t care about those things very much. I noticed he acquired some cooking items such as a rice cooker and type of coffee maker. He also found a desk that suits him at some point.
Instead of being sure he has a nicely/completely furnished apartment I would be sure he has some basics (his definition, not yours or mine) but let him add to them as he figures out what he likes. A few years later he may dislike what he starts with and not feel he can get rid of it even if it isn’t high quality (eg IKEA) because it is so new.
My son is not a shopper but it is better that he decides than we outfit his space. Once he settles into his job and city he may find better furniture at store further away- and they do deliver, apartment management does take care of deliveries while people are at work.
One suggestion- try to foist some of your stuff on him if you would like new kitchen gadgets, cookware, dishes et al. Have him look around your house, especially your kitchen to see what things he would use. It’s a good excuse to update/upgrade YOUR stuff. Instead of paying for a new set of Corelle ware dishes I gave son almost 1/2 of my many since we were becoming empty nesters and no longer need so many. I got a new set of cookware- had two sets and gave son one. He got a new inexpensive silverware set that I took the extra 8 teaspoons from (makes up for those he lost in the trash while growing up- learned to discard yogurt containers himself before learning to not throw away the spoon).
I still have my first big furniture purchase from when I was finally done with schooling- a now over 30 year old Laz-Y-Boy recliner (they don’t make them like they used to, btw). It’s showing its age by now.