Bytecode vs Proto vs Lua wrapper

Hello, I've been reading about the internals of the lua engine and how script execution works. From what I see, scripts are compiled into a interpreted bytecode with lua loadstring, and later on converted into proto structs which have commands for the lua VM. Lua wrapper means directly calling loadstring and then pcall with lua state. Bytecode & proto feeds to lua VM on a lower level. My questions are:

1. which script execution method really is the most effective?

2. Aren't they all the same? Since scripts executed with a lua wrapper eventually will be converted to bytecode.

3. What are the possibilities of script execution nowadays? I haven't cheated on roblox in 2 years, and back when I used to use exploits, I only used free executors.

Sorry if this is a stupid question, I am a beginner with Roblox Lua hacking & internals.

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