Waiting six hours after meat to eat dairy products

The following question was asked, and I believe it is an important topic to address. Question: How long do I need to wait between eating meat and dairy? I’ve heard that waiting is just a minhag, and historically, some simply rinsed their mouths. My parents mentioned...

“Meat” Fries

Must one wait 6 hours after eating fries from a meat restaurant or does this ש״ך (or another reason) exonerate one from waiting in such a case?

pareve?

I have a question about Silk brand Creamy Cashew “milk” It is labeled as OU-D.  The ingredients are above.  Can I use this for a parve recipe?  Is it dairy, dairy equipment, or can it be used for parve? Thank you! joyce...

same plates for meat and dairy?

I’ve heard that glass dishes (plates, bowls) can be used for both meat and dairy.  Does this apply to any type of glass dishes (e.g., Corelle, something akin to this), or just plain, transparent glass?  Are there any other material considerations I should keep...