I only recently realized how toxic methylene chloride is. Apparently one teaspoon is enough to kill you. It converts to carbon monoxide in your bloodstream and you die of oxygen deprivation. I remember a warning on Hylomar years ago about carbon monoxide in your bloodstream. I guess it's in it as a solvent.
It is also used to
decaffeinate coffee.....
https://duckduckgo.com/?q=methylene+chloride+coffee&t=brave&ia=web
I have yet to find any paint stripper without it that works worth a damn. If you are still looking for it, Loctite Chisel gasket removed still has it as well as Lawson products "The Stripper" gasket remover. I don't think Lawson products are available to retail customers though.