How to solve the problem of garbled Chinese when exporting PDF files?

How to solve the problem of garbled Chinese when exporting PDF files? English and numbers will not be garbled, but the pictographs will be garbled, is there a lack of font relationship, how do you need to deal with it?

I’ve tested around and got the same results.

The DB table (+ field) is set to: utf8mb3_general_ci
I’ve configured the im- and export settings to UTF-8

The data in the table looks good.
After generating the PDF, I see only squares.

Maybe it is already fixed with:

There are a couple of related tickets:
https://github.com/search?q=org%3Asalesagility+pdf+encoding&type=issues
but so far, it seems to be not working in 8.7

We can only continue to wait for the expert’s reply! thank you!