There is ample research regarding Roundup, but it is disregarded in the same manner that climate change deniers are disregarded. It doesn’t fit the political agenda. Here is a good article published in the Scientific American on the inert ingredients that magnify the harmful effects of glyphosate. https://www.scientificamerican.com/article/weed-whacking-herbicide-p/
I use 20% vinegar to kill weeds in my garden along with a well sharpened hoe. I prefer to grow everything that I possibly can without the assistance of man made chemicals. My little organic garden produces 10 times what my family can consume, so we give it away to members of our synagogue.
I believe in climate change. It gets cold in winter and hot in summer. It has been that way since creation.
Looks like you are from Texas. Glad the vinegar solutions work for you. Up here in the high desert of Nevada we have weeds that vinegar, salt and even roundup will do nothing to, in fact I think roundup just makes them mature and throw seeds. It is a chore to keep up hand weeding in our small garden.