Am commercial HVAC mechanic. My clock starts when I get to the shop, grab stuff, then start travelling, or when I get to site if I start there, then ends when I leave my last call for the day.

I can spend anywhere between 10-12 hrs a day not being at home due to traffic, and get paid for 8.

But I see your idea of having a standard 1 hr in and 1 hr out as a compromise and it’s up to you how close or far you live to your work location or bubble. For me, I live within my work bubble, and can work anywhere in the region depending on the day. Could be anywehere between 10 minutes, and 2 hours.