The right to disconnect for me is when I don't have to care about work anymore for that day. Whenever I work some odd hours to have free time during the day this time is simply much less enjoyable. I know I will have to attend to work obligations while I'm supposedly on free time to enjoy daylight hours. This pressure is not something I can turn off at will.

With remote work I appreciate having the option to use the inevitable idle time to be more efficient with house chores and such but remote work never brought me the freedom you tout...

I have worked remotely in the past before COVID and tried your suggested approach, would be free during afternoons and work from 17-00, or split the day in morning and evening work. It didn't ever give me the same relaxation as I get from having free time until the end of the day.