Looks like after years of using ImgBurn, I'm going to have to find another solution.
There is no opt out of third party tools anywhere in the install. The snap do installer has the option for express (custom is greyed out) and canceling exits the entire install.
This is a bit of a shame after the years of good service.
Edit: I -hope- this practice of bundling malware is resolved shortly. I would rather -pay- for the software then deal with this.