Chris,

Thanks for reaching out. We have a Joomla4/5 version of that extension in the testing phase and should have it available this upcoming week. If there are any other extensions that you are unsure about, throw them in here and we can make sure we push those up list (if they aren't already done).

Adam

Chris,

I not only put the ticket in the right place, but I just finished testing the Gift Card app and you should be good to go. I haven't fully tested every option, but it should work the same as the J3 version. Here is the link:
https://www.j2commerce.com/extensions/apps/gift-card-certificates

Let me know if you run into any issues so I can get them resolved quickly.

Adam