office 2016 Standard Edition fonts are not complete

Question

I copied the one with full fonts and the other with partial fonts to the computer with partial fonts, showing that the copy was successful. However, there were 552 items in the folder with full fonts, while the one with partial fonts was still 206 items. Later, there was a "download all fonts" on the left. Later, it took three hours to install 552 fonts in the 552 projects. However, the computer with incomplete fonts still had 297 projects. I don't know what to do

Answer 1

I copied the one with full fonts

Copying font files isn't enough, you have to install them as well, see

https://support.microsoft.com/en-us/office/add-a-font-b7c5f17c-4426-4b53-967f-455339c564c1