I think GTS has a lot better physics than often is suggested, BUT the feedback from the physics is HIGHLY dependent of ones controller. There is massive difference between steerig wheel models let alone playing on dualshock. I myself have had T-GT for maybe 2 years now, so I think I have the optimal gear to feel the physics through the ffb as intented by developers. Bit bumbier tracks and a bit more feel for longitudal weight transfer would be nice, but its actually very good. Also one should note its very natural to change between GTS, ACC and iRacing - like having the same rules of physics just differently tuned. ACC and iRacind DO have that extra bumbiness and feedback/weight under suspension load i would wish GTS had, but with T-GT i can feel the information is there - its just informed in different way. Old AC feels in general way too slippery after these.
My main point is the same as so many times before. Hard does not equal realistic simulation, and games physics feel VERY different with different wheels. One should also note many of us propably prefer the games we do depending on our gear. There are many games I have felt lot better with G29 or T150 compared to T-GT, and I imagine its the same different "sweet spot" of a game with i.e. Fanatec.
Ps. I dont think PS5 makes much of a difference here. ACC has better fps on ps5, but same exact physics/ffb as ps4. GTS even less as PS5 benefits only loading times. I do feel like cockpit view is smoother on ps5, but thats propably just a placebo effect..
Pps. My experience of ACC is from PC, but i have let myself understand the physics and ffb is the same on consoles.