Let user specify to which field the import option "Allow HTML in fields" should apply

My cards are LaTeX based and I prepare them in VSCode before importing them as a text file.
I wanted to add a new field to my card for adding gif-files.
To import a gif via a text file, you need to specify it as

<img src="mygif.gif">

and turn on the option “Allow HTML in fields” at the import prompt.
However, this doesn’t mix well with some of my LaTeX cards that use the symbols <> (and some other symbols?), ultimately removing parts of my content.

Would it be possible to allow specifying which fields allow HTML?