Not Standard Input behavior?

I’m trying to automate something with a browser extension, and I’m facing a problem with an input.

The thing is, I can’t set that specific input value to anything from the extension. If I do it manually from the console it works.
Setting the value does not work.
Using events does not work.
.click and .focus do not work, the value I set appears in the ui but the .value property is still "" and after a few seconds it disappears.
I found a thread on reddit describing the same problem a year ago but it does not provide a solution.

Any idea of what else can I do?