Heyy @EA_Leeuw
The problem isn't that it's a "Nice to have" feature. The problem is that EA decided to completely nuke the origin launcher, for example, without reaching feature parity first. So paying customers who need a specific feature to enjoy their games, which is the whole point of paying for a good game, are stuck between not being able to use the origin launcher anymore, and the EA launcher being beta-quality software (because it'd be too mean to call it alpha software).
I understand that launch arguments/options might not be a high priority. But considering that there are complaints dating back to late 2020 / early 2021, it's reasonable to assume that such an issue should have been handled by now. The least EA can do is to track the progress of that specific issue in the Trello board that was previously posted.
reference:
https://answers.ea.com/t5/General-Discussion/How-I-add-command-line-in-game-launch-option-like-in-old-version/m-p/9519552/highlight/true#M3113