Remote work is a skill, it takes time to acquire, just like office work and barely less. (Have you forgotten how hard it was to stay put for 8+ hours in the same place? I still remember.)

My personal estimations -- it takes 18 month to work out an established routine, so any RW "decreed" on the worker before that time, is indeed effectively vacations.

The worst scheme is working from home 1-2 days a week, and coming to office for the rest. Beside the established routine it also requires adapting the sleep schedule (which is twice as hard if the RW days are floating, not fixed).