Totally agree, since the individual's situation varies so much (both intra-team, in their personal life, and across time) the only conclusion that can be said at a c-suite level is that nothing should be broadly mandated and that teams should have the option to decide on their own about office vs remote.

I hypothesize, however, that a lot of these decisions at a c-suite level have more to do with other considerations, like property investments, headcount, salaries, or (worst of all) egos.