When I enabled RCS on my Android, I started getting ads with rich media. So I disabled it. And moreover WhatsApp is the dominant messaging app in my country. So this doesn't matter.
[0] https://www.theverge.com/2022/6/1/23150243/google-rcs-ads-in...
[0] https://www.theverge.com/2022/6/1/23150243/google-rcs-ads-in...