There is officially no way to play Roblox on the website. While some players use third-party websites to find alternate ways to do this, Roblox neither officially recognizes nor endorses them.

If you are asked to continue installation without flag settings in Roblox, first clean Roblox App Data and see if it helps. More fixes here.

If Roblox is not downloading or installing on your Windows 11/10 PC, restart your PC and if that doesn't help, use the fixes discussed here.