If by a “mixed way” you mean 1-2 days in office, that would never work for a lot of people for the reasons below.
You have to commute those days.
You have to find child care but it’s not consistent so your possibly paying more per day for the few days vs. getting a good rate for weekly.
You have to carry all your equipment with you. (I personally have to carry my laptop plus the equipment I support which takes like 2 trips from the car to my desk plus time to set everything up.)
Not all of team comes in the same day/same location, so your still on virtual meetings anyway.
To be fair a lot of this is my personal experience and other companies may work differently but for me, I’m staying fully remote. Good companies/teams make it work. If your company/team can’t work like there are other issues at fault.