I’m not sure how avid have done this. Weather it’s a utilisation of CLAP/AAX or what but it’s game changing for midi tools/inserts https://www.avid.com/resource-center/midi-plugins
Obviously Cubase’s midi inserts are extremely dated, glitchy and in some instances don’t even allow recording of automation (Looking at you arpache) so if Steinberg have given up on their own midi inserts it would be awesome to see them invest in a style of midi insert for the future like can be seen in the article.
Even logic have leapfrogged Cubase in this area now sadly.