>>149103561
In SCOOB Velma was brown.
In the direct-to-video films, which is primary canon for the franchise, she's lesbian.
And MultiVersus had her overly sassy and sarcastic personality type like Mystery Inc.

The Velma series is the extreme end of it where they combined it all and made her annoying, brown, and lesbian.

>>149103932
In Be Cool Scooby Doo they gave her a fear of water. That series had a lot of decent characterization, even though it was a comedy first.