What do you mean by an installer? When you download MAME through the official website, it comes in a .EXE executable that extracts everything you need to the desired folder. As long as people don't tamper with the installer, it should do everything you need. What else do you want?
The common problem is that people aren't just running the installer. They're just extracting the files they want (which usually is just the mame.exe file) and that causes a lot of problems, and causes unnecessary questions in the forums, that could have been avoided if they just ran the executable as was intended.
Windows 11 64 bit OS
Intel Core i7-10700
Nvidia GeForce RTX 2060 6GB
32GB DDR4 RAM