To buy or not depends on whether you have optics from other cameras. If you already have it - definitely not worth it. Buy an adapter and save yourself tons of money. I made sure the fact that a camera with such a small matrix simply does not reveal its potential good optics.
If you are just buying a camera, then think about why you need it? If for amateur purposes, then the native kit lens is enough for you. If you want to photograph more or less seriously (not to shoot video, namely to photograph), then micro 4/3 is not for you.
In general, the conclusion suggests itself that there is no point in investing money in photo lenses on a micro 4/3 system. Restrictions are imposed by the carcass itself, no matter how wonderful the lens is.
I am personally surprised by the pricing of Panasonic / Olympus lenses. They cost themselves quite like good full-frame counterparts. My answer is buy a full frame lens or 1.5 crop lens and use it with an adapter. Subsequently, you will be able to use such lenses on other equipment, which cannot be said about lenses at micro 4/3.
In my opinion, buying double cropped lenses can be justified only by the following consideration: you are an amateur photographer who spares no expense and wants compact equipment. A very nice advantage of micro 4/3 lenses is that they are small and lightweight. But I think the prices for them are inadequate.
A little later I will post a more detailed article on adapters and the features of their work.