Can I safely charge&use my macbook with the adaptor below?
In general it is safe to attach standards compliant USB Type-C products to the MacBook.

If the multi-adapter offers power delivery (i.e. charging) and is standards compliant, it should be perfectly safe to use. According to the documentation it should offer charging at up to 65W which is plenty for the MacBook.

I have however not tested this specific adapter with the MacBook.