Hello. Recently I've purchased Canon EOS R with two lenses: RF 35mm f/1.8 and EF 100mm f2.8L. Before this time I used Pentax K-70 and Olympus E-M5 m2 cameras.
Welcome to the forum, it will be interesting how your photos turn out and your thoughts on the EOS R camera.
Due to I have no Canon 24mm lens I've tested Pentax FA*24mm f/2 on Canon R body with noname adapter. The result is not bad. Untitled by ALexey Novikov, on Flickr
I bought a camera with an adapter. The lens was purchased from another seller.RF35mm is a nice universal lens. Here are couple of images with RF35/1.8.