Borrowing ETH? From where?
Forget about the conditions where you use it for what, but until now I have never heard of any special loans such as ETH or other coins.
Even if it is possible that it exists but in the end I don't think anyone would suggest such a thing because the conditions remain the same. Borrowing to buy other investments is certainly not recommended. Apart from the fact that we really have to mess around with payments every month, on the other hand I think using my own money is far more worth it for investment compared to having to borrow and spending more on interest.