I drive two cars and two different software versions. The 2016 MS 90D is always conservative (2021.44.6). If and initial calculation shows I will arrive with 8% I generally manage 11-12% (75mph and I plan ahead to pass traffic without slowing down to maintain as constant a speed as possible). The 2021 MYLR (2022.12.3.20) cannot be counted on to make its original range estimate. If it says 12% I will probably end up with 8%.
IMHO range anxiety is overrated. We all dealt with it in 2016 (and before) with far fewer charging spots. Today seems like a cake walk. But then I have nearly 200,000 mile in the cars. Something as simple as speed control can really help the long range experience .