Depending on where in the world you live you will have platforms that will offer it or not.
But why buy a Bitcoin ETF where you pay a premium for custody and maintenance, when you can buy Bitcoin yourself?
Gold ETFs still make sense to me, because holding gold is dangerous, but holding Bitcoin is an asymmetric risk, it is very easy and safe to hold, although it depends on how you look at it, it all depends on a password or numbers in your head 😂 .