I reviewed the solematch bounce for t dub actually (can find written review in same shoe section of forum for those who want to read)and recently got gifted a pair of Stycon by my sister. And I definitely agree with you. For me, in terms of comfort and cushioning, I would rate Solecourt boost as number one, solematch bounce as number two, and Stycon at number 3. And I don't have too wide or too narrow feet. Would rate them medium, same for arch too.Hey, good for you if you like the Stycon. I didn't (although God knows why I haven't returned it). Honestly, I have played tennis long enough now to know what I like, and what I want to avoid and Stycon for me falls in the latter category. Did not feel as plush, and the fit was a put off to boot. The overall look and feel is just not for me.
As for Tsitsipas or ATP pros using/endorsing, it was just an observation, albeit a valid one, since they were pushing the shoe a lot. I don't think it panned out very well in that regard.
Also, SCB is Solecourt Boost which is by far the plushest tennis offering by Adidas at the moment. I think you are confusing them with SMB (Solematch Bounce), a different shoe with Bounce tech sole and not the Boost material. But regardless, having tried all three, the Stycon does not even come close to SCB and maybe barely on par with SMB when it comes to softness and cushioned feel. I think I gave in-depth reviews in Jollys thread here comparing SCB and SMB. Will probably do a review for Stycon too.
I also think laceless thing is a gimmick but perhaps a debate for another time. I can get same or better fit with many other shoes with laces. I mean how lazy do you gotta be to avoid laces? Have never had issues with laces opening up before and not like laces make the shoe feel alien on your feet.
Think of it this way; amount of time you take struggling to put feet in the Stycon, you can tie your laces 4 or 5 times over (prolly even more)