As a Roblox developer, it is currently too hard to localize my game into Tamil, Telugu and Lao, because Roblox lacks the fonts for these language scripts. They always appear as a blank square, the Roblox icon, or just an invisible box.
Tamil and Telugu are very popular languages, and Hindi has proper font script support, so it makes no sense to leave those languages out, especially since they are in the same country. Lao is also confusing because it is also popular, and Thai is supported. They both have very similar scripts too.
If Roblox is able to address this issue, it would improve my development experience because it would help with player engagement if these languages were either added to the official supported languages, or if they were given basic font support.