"Would love to see Laser Disc Games added as a platform category. As I am trying to build it myself but it requires multiple emulators, Winuae, retroarch, mame, Daphne, Singe2 etc. would be great not to mess with associated platforms and things to get them all put together"
Not exactly sure what you mean here.
First, Laser Disc isn't a platform, it wasn't a single system. It was just a tech and typically used in arcades. Though with the CD tech coming to home computers and consoles it become feasible to make those games for home hardware and then those ports would belong to their respective platform instead of "Laser Disc".
Second, making a platform for "Laser Disc" would not solve your issue since each emulator would still require you to add the "laser Disc" platform to it.