It's give-and-take.

At a butt-in-seat job, I'd turn up on time and leave on time - and that's the end of it. If during those hours I happen to be in an unproductive mindset (eg, unable to concentrate) then so be it. I'm paid for my time. If I happen to be in a productive mood after hours, their loss.

Now that I'm working remotely, if I'm feeling unproductive then I will stop work and do something else (shopping/walk/etc.) and resume when I'm more productive.

I also don't mind being contacted out of hours (I'll decide if I'm busy or not) - they're flexible with me, so I'm flexible with them.

They'll get the same number of clock-hours from me, but with more work output.