That completely depends on your situation. Lots of people like the Bighorn TL3/Origin. I personally shoot an ARC Nucleus. There's tons of great actions out there. Curtis, Terminus, Impact, and Defiance all come to mind.
What's your needs and wants for an action?
To answer your original question: no, there's not really a situation in which you "need" CRF. Push feed is just another way of getting the cartridge to the chamber. As people have mentioned, some cases like the Improved BR variants (short, stubby, steep shoulders) see lower rates of struggle when used in CRF actions, but some people still see their fair share of issues. For the GT, the claim is that those feeding issues have been nullified by the case geometry. CRF or push feed should serve you well.