Unfortunately, we really can't draw a conclusion about how FM(2023)'s physics are going to feel like no matter how many points of contact they claim a tire has or what refresh rate they're drawing at. For an example, Assetto Corsa has one point of contact per tire. However, the physics are quite good, the feeling is good and the FFB is wonderful. Even being ten years old, it's a great standard to base a physics experience and FFB model off of. Even though the tire model is a bit dated and starting to age. They obviously updated this in ACC.
What makes it good? A bunch of systems working together to form a physics entity. Start with real geometry to the suspension. A-arms, double wishbone, struts, rear full axle. AC models these geometries. Does FM? We don't know. then spring and dampers. AC models progressive spring rates, bumpstop thickness and material and rate of compression, damper fast and slow bump and rebound as well as movable crossover point. All these working together with a complete 4 parameter steering rack and cars inertia creates really good Force Feedback through a wheel. We have no clue where FM(2023)'s physics end at. They told us about 8 points of contact and a refresh rate. You can draw absolutely no conclusion from that and how they personally are going to apply these physics enhancements to their engine. I cringe when Chris says things like "I'd put it up against any sim on the market" or "no sim has this level of detail" or whatever the heck he said. Please don't. Just don't. lol
A painter can use 20 colors to make a painting and it can still be crap. A talented painter can use just 3 colors and make a piece of marvelous art. It's all how it's applied to the main picture. I would be interested to hear exactly what each of these 8 points are calculating and why 8 creates something that 5 in ACC can't. I'll go out on a limb and say that ACC's physics model is still going to be far ahead of what FM(2023) is going to produce. It's an accessibility - all ages type of scenario for these types of games like GT or FM. I hope they get to a more realistic model though and it seems like that's what they're working towards.
I believe AMS2 has 3 points of contact but then again, it could very well be more seeing how complex that physics engine is. They have amazing tire flex and properties. the sidewalls, contact patch and elasticity seem to constantly get little updates as they fine tune the experience of each car.
Sorry to ramble. I'm a physics guy and that's the type of stuff that interests me in a simulation.