@ente is probably the best out there if you can't self-host. Their free 10GB plan is really good and paid starts at 50GB - 2.50€/mo.
All your photos are e2ee, which means only you can access them. Even if ente's servers got hacked the attackers would only see random crap.
They have all the features you mentioned and more (didn't try Chromecast, but they do have something similar using a browser).