I've been doing a lot of that for 19 months after reading leaky-gut papers, making connections and doing further reading and checking, as I have detailed in the leaky-gut forum. It has helped a lot with multiple symptoms and I have high hopes for continuing improvement. But I use grapefruit seed extract instead of pharmaceutical antibiotics.
I note that it is claimed that the gut dysbiosis in question causes constipation, but a high proportion of us appear to have diarrhoea. This supports the suspicion that there are subgroups, with different people having different types of dysbiosis, definitions of which can be found here.
People with diarrhoeal dysbiosis have been found to benefit from gluten-free diets, as is also reported in one or two threads. Many of us here have benefited from this.
43% of ME/CFS patients have an over-representation of Streptococcus, 18% have an over-representation of enterococcus .... according to bioscreen, this is over half. They have not reported on patients that are colonized with these but aren't over-represented.
Prevotella over-representation is another sub-group .....