Older text messages not transferring from iPad to new iPhone

I got a new iPhone an my text messages from anything ahead of march 2025 didn't transfer. I have all the missing messages on my iPad still however. I was wondering if there's a way to transfer the up to date text messages from my iPad to my iPhone. I've tried syncing on both devices but neither have worked, I tried both before and after a fresh back up but they just wont go to my new iPhone. I've also checked and made sure that both Send&Receives are linked to the same iCloud account.