As you can see I searched up “GetActor” with CONTROL + F and didn’t get any results. I even manually searched each function and couldn’t find it. I even had “Show Deprecated” on.
Is this a new feature or did someone forgot to document this?
Upon further review, it seems like this is used for parallel Lua and is not restricted to CollectionService but other Instances.
Trying to figure out how this works as we speak, doesn’t seem to do anything as of current. I’d say wait a while for Roblox to give it an implementation
@Maximum_ADHD has posted something regarding it on twitter, it may actually be that its related to parallel Lua. Although the future is unforseeable atm, so take no guesses.