Transferring text messages from old iPhone 6 to new iPhone XS Max?

I just bought an iPhone XS Max today and I had been using an iPhone 6 for years. I have text messages going back quite a ways that I'd like to transfer from my old iPhone to my new one. I have backed up my text messages on i Cloud, but now that my new iPhone is all set up, I don't know how to transfer it over.

When I googled how to do it, it was either saying I needed to restore the entire phone from back up or use a third party program to do so. I wanted to know if there was something I overlooked.

Both phones are on current software. I still have my old phone.

Thanks in advance!