@ryno267 Sorry for the delay. I hadn’t seen your topic because I neglected to subscribe to this plugin’s support forum.
See my reply on the Modern Image Formats plugin (another Performance Lab plugin) for why we include meta generator tags:
The thing is that we need to identify the specific sites that are using the plugin when analyzing sites in HTTP Archive. It’s not really helpful to know the install count. We want to be able to compare sites that have the plugin active versus those who don’t and how the relative performance of images on the two sets of sites. In order to do this there needs to be an indicator the plugin installed, such as a meta tag. Elementor, WooCommerce, and Site Kit also output meta generator tags, as do many other plugins.
See also the relevant topic on the Performance Lab support forum.