and what the ramifications would BE to us "clearing out our cache"
I'm fearful thatr doing so might delete helpful functions
It will not. And c'mon. We've been clearing our caches--often daily--since the '90s.
I personally don't do it anymore, because Apple decided we didn't need to do it ourselves back around 2010. You have to go into "history" now, if you want to do it.
I didn't need to bother. Dunno about my phone, I haven't used it to access IHub today.