This is clickbait slop in my opinion. But, now that we are here.
I have found vinegar an excellent weed killing tool when someone put down weed barrier and rocks. You don’t care about the soil in that case.
Otherwise a torch works great if there is no plastic weed barrier to burn.
I am removing all of the weed barrier slowly on my property- it is snake oil no matter where it is used. Nature will slowly build soil on top of the barrier in a few years and it will slowly degrade from wear and heat. Max 3-5 years before it is just a big mess in the PNW.
The people who owned the house previous to us put plastic weed mat all over the place. Looked fine until it wasn't, and then it was a huge job to remove it. Still haven't got it all out 10 years on.
I'm not sure about their vinegar claim - I buy a horticultural vinegar and I haven't noticed any bad effects on the soil where I've used it. The main issue is just that you have to spray more often.
I’ve had the exact same experience with weed barrier - even the best and thickest. Weeds poke through or grow on top by the third year. In the midwest US.
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