Display multi tags references

I use “tagify” and “multi references” for a “categories” field in a “product” insert page.
Everything works as I expected
The category / product reference table correctly lists the data and the new categories are saved in the Categories table correctly.
Now, however, in the list page that lists the products, I would like to display all the associated categories (tags) in the “Categories” field, perhaps separated by a dash or a comma
I have tried various solutions but without success
Anyone know how to proceed?