Flash when displaying cards with CSS imported

I’m importing my customized CSS file across my decks to ease the copy-pasta and sync of style rule. But I noticed that on Desktop version, the card is often displayed correctly only after a flash.

I think Anki display the card before it loads the CSS file and only when the external CSS file got imported does it re-render the card with my rules.

On AnkiMobile there isn’t any problem.

Is there any better way to get rid of this “flash”?

Is this the same thing as flickering when external css reference used · Issue #1455 · ankitects/anki · GitHub

Sounds like it, yes.