To avoid the number of SP releases, we may consider changing the platform release model from releasing all the member BOMs together under the same shared version  whenever there is a change in any member BOM to releasing only the member BOMs that have actually changed since the previous release. This change would imply that each member BOM would use their own versioning.

Here is a summary of what 2.13 platform releases include if we took this approach for 12.3 https://docs.google.com/document/d/1NwZ-n7nBdP0lnYznEZssur0bIlBBENFp0DXlr_7Xc4w/edit#heading=h.6t9i9qxc2chf