In quite a few ways
Poor frame rate, my 2500k did a WAY better job in every way and was pretty old at the point of buying a One X - a 10 year old CPU (bought in 2008, with the original Windows install lol) was able to murder a One X on frame rate.
Graphics / frame rate was dictated by developers, granted there was a graphics and performance mode on SOME games but I expected better graphics in performance and as I was running in performance mode all the time (when the option was available) then there was never any real justification for me to upgrade to a 4K TV.
I had to rely on MS/Sony to "upgrade" old games to better graphics or buy them again - not a fan of this at all.
I really missed the ability to tweak graphics settings to my liking.
Joypads, this beggers belief, the PS3 pad was absolute dog poo, improved a lot with the PS4 pad but I preferred the Xbox pad and couldnt use it.
Youtube was AWFUL, obviously no adblocker but when vids are interrupted by a 'x' second advert, it wears thin pretty fast.
Also, unable to see comments on a video, it makes watching long vids with timestamps a pain as I have to reference my phone for comments
Other apps didnt always work properly - I never got the PS4 twitch app to work over the past couple of years, not just me on this either as I found a reddit thread with many other people having difficulties.
The online stores, jesus, what an absolute slow, clunky mess (both are leaps and bounds ahead of the PS3 store though).
VR, wanted to give it a try, MS say "NO" and the cost of PS4 peripherals for VR was more than I thought was reasonable.
PS4 integrated perfectly with my TV remote, not with Xbox, I had to spend more money on another remote which just chews through batteries.
Both the PS4 and Xbox One X, you stand the chance of getting a "bad" one, that is very loud - I know the PS4 Pro was also VERY sketchy on this but I didn't own one so I won't comment!
I will add that both of my above consoles were ok for me, my PS4 was even a launch one
Ultimately they all feel like iphones, if you want to accept them as they are then you are ok as there is ZERO scope for going outside of what they (manufacturers or developers) want them to do.
That's all just off the top of my head.
I know that makes it sounds like I hated the console experience, I actually didn't, it's just as per my earlier comment, I found it frustrating.
They both play blu rays, so that's a bonus a guess, ended on a positive!!
Apologies for this brief brain dump, as I didn't want to moan although I do have a bottle of wine in my belly and a head full of cold but apart from that, Merry Christmas