I really like the idea of this, but I've run into several installers which are just incompatible with it. I don't remember which ones, unfortunately, but they just didn't deal with it well.
Agreed, I've run into just enough installers that don't work with Ventoy where I've just defaulted back to using etcher when I need access. The 5 minutes wait is worth it over the frustration of booting into Ventoy and finding it doesn't work with the ISO I'm trying to use.