I use nested-tags organize my notes, but it’s hard to search.
For example, I have a tag ‘#Apple/iPhone’, when I just want to search this tag, I have to type the whole ‘#Apple/iPhone’, the same case in this link below.
I think this sounds dangerous, as I’m thinking there should be a reason why you used those nested tags in the first place, and one such reason could be specificity. In some cases you maybe wanted to distinguish between #apple/iphone, and #cases/iphone, or …
The point I’m trying to make is that nullifying the levels like that would break some nested tag schemes, for sure.
It would be better, if moving forward with something like this, to have similar but different syntax for searching for nested tag levels. Maybe something like “#/phone” or “#*phone”.