One of the biggest misconceptions about weed is that a higher THC content means a higher quality bud that leads to a better, stronger high. The truth is that the THC percentage has nothing to do with the quality of your weed and is also a bad indicator of potency. The THC percentage is often considered to be the potency or strength of a cannabis strain. THC doesn't work like many other psychoactive substances.
While it's natural to assume that a higher level of THC would lead to a higher level of deterioration, this is simply not the case. For example, strains with a more balanced THC to CBD ratio tend to have much milder psychoactive effects. With that in mind, it's smart to use a strain that contains as much THC as possible, which gives you more THC while using less plant matter. If THC is the cannabis compound that places you, then the logic is that the higher the percentage of THC, the more potent the psychoactive effects of the flower will be.
There is absolutely no research to indicate that this level of THC is beneficial for any medical condition. Just take the percentage of THC, move the decimal point to the right, and now you'll know the total THC dose per gram of dried herb. The biggest difference between edibles and inhalation, chemically, is that when THC is ingested orally, it is metabolized by the liver and converts about 50% of the activated THC to 11-hydroxytetrahydrocannabinol (11-OH-THC or 11-hydroxy-THC). Microdosing is ideal for consumers who want to avoid the intoxication associated with THC, while still benefiting from the relief offered by cannabis.
Using the percentage of THC as the sole determinant of what constitutes a good herb is like using fat content as a basis for determining if something is nutritious or not. But if you need to know the amount of THC related to total weight, then the THC percentage is as accurate as possible. For example, King Louis and Sour Diesel are two strains that are very close in their THC content, but they couldn't be more different. THC binds effectively to both receptors, but some cannabinoids may change, reduce, or interfere with the absorption of THC.
Ideally, this would be less than 10%, since there is no good research on concentrations above this for any medical condition and there is significant literature on the negative effects of high-potency THC. Studies comparing the performance of people who used cannabis strains with lower THC to people who used cannabis strains with higher THC found that their level of deterioration was essentially the same. The THC content doesn't really matter when it's all said and done, because THC isn't solely responsible for creating the experience.