I’m really CURIOUS about this, this can work really good for a game I’m making.
Is it like… Beta things or what??? Can’t find anything about this in my StarterGui
‘TopbarEnabled’ for SetCore only toggles a set of CoreGUI elements (like Player Leaderboard, Health and maybe Chat? I don’t remember :ppp) not the Roblox Menu button
This image is actually showing something different than whats described in this post. The post talks about a bug where a CoreGui button disappears but the image here is showing a key prompt that can be used to open and close the menu.
If your using a controller youll notice these pop-up quite often. You can also see it if you use the keypad on a PC while in Roblox player home page you can move around (with your arrow keys) and this little prompt may appear:
I really wouldnt like spreading misinformation so this is only an assumption; its just a normal in-game element… As far as I know there isnt currently a way to hide it permanently. (and to be honest i dont think we will ever be able to customize the core gui more then we already can)
The post @Frostism_Dev linked shows a genuine bug where the main CoreGui can sometimes disappear in-game. Im not sure what causes that bug… I assume these key prompts are being actively worked on and tested multiple times. They appear occasionally in-game especially when using a controller or keypad and are likely part of ongoing adjustments rather than a bug!