2 or 3 days a week in an office is useless.
Either make it 5 days a week in the office with up to x weeks of remote or make it full time remote.
When an office requires 2 days a week in an office, you get none of the alleged benefits of in person work as everyone chooses which days they want. In a part time remote situation, the office ends up being 60% empty all the time anyways… And it's almost always a waste of time to hold a meeting in an office if even one of the attendees is remote, which is extremely common in modern teams.