There's a type of analysis, typically from non-educators, that conflates "instructional hours" with "teacher work hours."

It produces silly "teachers only work 'X' hours" takes and is either the result of ignorance or malice, (likely both).

If you interrogate this line of thinking for ten seconds, the holes become apparent. It's like assuming John David Washington & Christopher Nolan only worked 3 hours this year based off the run-time of Tenet or that TV news anchors only work the hour they're on air each day.

You have to be daft to not understand that every hour of instruction requires a commensurate amount of planning and assessment of student work—in particular in an online environment where you're creating everything new or adapting your existing materials.