I know it is a chore, but since it seems to be unwelcome in your top level comment, do you mind posting the links here? I actually am interested in checking them out, and I bet I am not the only one.
I wrote an article about front-end optimization here: https://blog.pagecheck.app/2020/01/22/5-optimizations-to-mak...
I'm building a front-end site monitoring tool here: https://pagecheck.app