question about seeing requires in non backdoored games

private stuff i guess

Requires for stuff like Scripts and Modules can be very normal if they're wanting some default settings or something from ROBLOX or they want a model to go into workspace via a script.

Most free models and scripts in ROBLOX will probably do Requires but if you want to check them out you'll need to get the Asset ID which you can get via Roblox Studio and the F9 Console, grab any asset id and get a model importer plugin and you should be able to get the script, model or whatever via that plugin and an asset id.

It'd be easier to provide an answer if you could clarify what you're looking to do with this software or exploit. I can tell you generally that there are numerous paid software solutions for a wide range of tasks, from graphic design to data analysis.