Deductions & credits

Can someone provide any insights into NY State and the home office deduction for a W2 employee if the working from home was only because of covid.  I have a separate room that I converted into an office and used it exclusively for that during covid.  It was previously a spare junk room.  Seems doing a home office deduction would be useful as I rent so would seeminly be able to deduct a portion (proportionate to proportional area of room) of the rent.  This contrasts with NY friends of mine who own and already can deduct property taxes from NY state returns.   Im unclear if this is allowed since the rent was being paid anyway before covid for an empty room that I have now converted.  Does anyone have any insights into this  thank you