When I open the launcher, my forge versions older than 1.10.2 still appear and will launch, but my newer forge versions (at least the ones I had, i.e. 1.12.2, 1.15.2, 1.16.3, etc.) do not appear in the launcher. When I try to create a new installation, I can, but it doesn't save and I can't launch with it. This wouldn't be an issue if you could manually launch using the versions folder in the .minecraft directory, but as far as I can tell you can't. 

Here is a list of the versions that would not save/launch:

Forge 1.10.2

Forge 1.11.1

Forge 1.12.2

Forge 1.15.2

Forge 1.16.3

Fabric 1.16.3

Fabric 1.16.4

Sigma Client Jello 1.16.1

Jigsaw Client 1.14.4

Impact Client 1.15.2

Impact Client 1.12.2

Optifine 1.13

Optifine 1.16.3

Optifine 1.15.2