

Most significant digits first. You write the thousands place before the hundreds, you write the month before the day. Of course, the whole argument is blow away when you write the year at the end instead of the beginning. (ISO YYYY-MM-DD dates for the win.)
I’m assuming you already tried to get the work application to run on Linux via Wine or Proton? I know Valve has been putting a lot of R&D effort into Proton for their Steam Deck, trying to improve compatibility.