Don’t worry about 99% versus 100%. Batteries don’t really have a 100% charge state. The BMS sets a 100% threshold and it asymptotically charges to 100%. Reaching 100% would take infinite time.
Lucid could update the BMS to display 100%, but it wouldn’t change the underlying physics in the battery.
Note that letting the (NMP) battery sit at 100% causes faster battery degradation. It’s OK to occasionally charge to 100% and then immediately drive, but for normal use, stay within the daily charge range.