Android 11 is nearing its expiry date and till now Samsung has not optimized it properly.
Those animation lags and stutters are still there even after 9 months, even on s21 ultra let alone previous flagships, dont even ask about midrangers.
Since Android 12 is around the corner, although it says better animations and less cpu load, I don't expect much from Samsung.
Be prepared for heavy battery drain, overheating, lags, slow device etc, for the first 3 months.
And I am not talking about the beta, I am referring to the stable release.
Only S22 series will enjoy a smooth experience, rest of us will spend our time submitting error reports and getting bogus replies.