The pros are pros IMO. I’m not a fan of my desktop files clogging up my other computers and if the easiest way is through local accounts I’ll do just that and deprive Microsoft of trying to sell me on the functionality of their suite of subscriptions. No loss to me
Not metallic and not sure about ‘alternative uses’ but ceramic is good for finger rings at least. It’s non-conductive, you can use a pliers or tap it hard with a hammer to shatter it if needed, and if it snags on something in a horrific accident scenario it’ll usually shatter before degloving or severing a finget