So you are fighting against work tradition even within your industry, poor productivity data supporting your assertion, and frankly a general work culture where most everyone else doesn’t work from home. Your deck is stacked against you.
I work from home, but if my company chose to RTO, I wouldn’t challenge it. I know from my team’s experience (same base group pre-pandemic) we are not measurably more productive WFH as in office. It would suck to add a commute back to my day, but prior to 2020 I did that for over 3 decades anyway.