Ha, come to Austria where your break times are not included in your working time, so if your contract is 38,5h per week, then that's your expected butt-in-chair time as that doesn't include any breaks.

The mandatory 30min lunch break and other coffee breaks are not included in that, but as extra in your own non-billable time, while the clock is not running, so you could easily be spending 40+h/week in the office if your company insists on keeping track of your time, which some do and also don't offer WFH so they can nickel and dime you on your butt-in-chair time which they can't if you're at home.