PS5 How Do I Upgrade My Ps4 Add Ons To Be Ps5 And Tsw5 Versions?

Hello,
I got a PS5 for Christmas and I tried to start installing my content but I was finding it a bit tricky, especially trying to use the video that Dovetail put up on YouTube to try to help but it doesn't make it clear rather badly worded with the voice they chose, so I gave up in trying to. Please could someone help? - DTG Harry.
Thank you.

 

If you have the same account from ps4 on ps5, you should be able to reinstall compatible contents from your library or game store, this is what i've done whit my ps5, maybe not every dlc have a ps5 version