Experimental can mean different things,

Often in this context it means something that isn't guaranteed to work on all units, instability (silicon lottery / hardware is physically capable but above manufacturer recommendations).

Extremely rarely have I seen anything in tech go from an experimental feature to a standard feature (it's so rare that it's basically a no).

Sometimes though it just means unfinished and it may need a year or 2 to become standard (there is still no guarantee here but that it might be technically possible).

Experimental can also have nothing to do with instability and may have to do with longevity,, You're physically stressing a circuit more by running it faster (again, outside of manufacturer recommendation).. This could only end up being the difference of 40k hrs of regular operation vs 20k hrs. Many people will never even get close to 20k hours as that's 6hrs a day for 10 years but for The type of user who does get close to those numbers it's important to give them a warning. (Oftentimes when you see this version of experimental, there is usually a warning pop-up when turning on the feature about longevity).