You're inevitably forcing your colleagues into your own way of working to some extent. Imagine a team of 6 people working on the same product:
If 1 is in office and 5 are remote, then the benefits of the office are largely lost even for the 1 person. That 1 person is still working in a remote model just from a different location which happens to be the office.
If 1 is remote and 5 are in office, the 1 person will inevitably miss out on a lot of the ongoing in-person communication. This was a well-known thing before the pandemic - the most common advice was to be remote for entirely remote companies/teams but to avoid being the only remote person on an office-based team.
If it's 3-3, then some of the communication is in person and half of the team is missing out on it but all meetings still have to be online.
I don't doubt that some companies will do this but it doesn't seem stable in the long run.