@RobertB85730
The estimated retirement benefit that's given each year on the SSA statement and the My Social Security account, at ages under your FRA (full retirement age), assumes that the remaining working years will have incomes in line with your recent history of wages. It is possible that if someone stops working prior to their FRA (but does not yet take Social Security retirement benefit) that the estimated benefit will later decrease once the "zero wage" years come to pass (the actual wage data for those years is taken into account in the newly updated estimate). I don't have access at this time to such a statement but I recall that there is an explanatory note to this effect in there.
This might explain the drop in your estimated benefit from the 2022 statement if the situation is that the $4,273 earnings for 2022 is substantially less than the earnings in the several previous years.
The situation is very similar to that described in this forum in a recent post, see https://community.aarp.org/t5/Social-Security/I-plan-to-start-SS-at-70-but-retire-at-65-how-does-thi...
Edit: this effect occurs only for estimates produced when you are below your FRA. I think you must be at the cusp of this; maybe the 2021 statement you were below your FRA and maybe for 2022 you were at or above your FRA. Just guessing. But the point is that once you are above your FRA the lack of wages will no longer have an effect to decrease your estimated benefit. And since you are delaying your claim, your benefit increases at the rate of 8% per year (not compounded). I guess that's 2/3% per month.