Internet Forums disappearing is a real shame.
For my hobby there’s still lots and lots of old and relevant archived forum threads that regularly help me out.
But for new information, that has all moved to Facebook Groups. This forces me to keep a Facebook account, which I hate and would otherwise ditch in a heartbeat.
You might have been looking for the term understated.
As in, to dress in an understated style. Which relates to simplicity, elegance, and versatility.
Best stick to the using the three seashells.