I noticed that the level counting for achievements of the type reach level xx for loco/route yy is not working correct. E.g. for the class 31 in game it says I reached level 10, the achievement says I am at level 9.Similar with the route level in MAG The reason this happens is probably that levels are reported to steam starting with value 0. In game it is shown with start value 1. It is not the most urgent thing to solve, but it is sloppy and should have been checked.
The same thing applies to Xbox achievements. You normally have to complete the level number stated in the achievement, not reach it. It was like this in TSW2020. A simple rewording of the descriptions would make it less confusing.