This is exactly the same as the studio logo just in a different color.
I personally don’t like this as much as the current one because it would dilute the meaning of the studio logo. They chose the style for the studio logo because it’s supposed to look like an “S” for Studio. If the main logo was an S it’d make no sense.
Additionally, since the only difference is the rounded edges and color, which contradicts the “blox” portion in the name “Roblox”, there is no obvious difference between what is Roblox Player and what is Roblox Studio which would make things very confusing.
I commend your effort and they look great! I just think your concept lacks practicality.