One can also use vapes. I avoid the cartridge types as I don't want to guess what was used to process them. Instead I use a simple flower vape which on the face of it should be less bad than say smoking from a joint or bong.

Gummies and other edibles though require processing in the liver before they become active in the body (they are converted to a slightly different form of THC) so you would need to consider whether there are any negative effects on liver health from edibles and then compare to the various 'inhaled' methods.

General friendly advice - for anything not flower, try to get things that are made by live rosin (not resin) as they are the cleanest and should not involve the use of any hydrocarbon solvents for extraction. Live resin would be next, though it does use hydrocarbons. Distilliates which are often in vape cartridges are almost always made with hydrocarbons. While the production method shouldn't matter if everything is done 100% properly, it does require trust that all the butane, etc has been fully removed from the final product.

i researched and experimented with edibles after beign diagnosed with CVD.

i don't beleive edibles are any safer

I wonder if they're doing these studies, finding no significant effect, and just dropping them.