It's really hard to answer a general question about a writer's process. There is a ton of variation with regards to what works "best." Some writers prefer to write an entire first draft, and maybe even subsequent drafts, before they solicit feedback from other writers. Others benefit from regular feedback as they construct their story and fiddle with things like viewpoint, voice and so on.
The only caution is that writer's groups can sometimes give confusing and conflicting feedback, and some people will confidently state that their own preferences are inviolate rules, or they may make assumptions about what one is attempting to do. This can get complicated if one's own plot, viewpoint, style and voice evolve as the story is being created. Also, critting partners who are offering feedback as the story unfolds may become confused if the author makes some major changes as the story unfolds. Communication is important here.
One peril of soliciting feedback as a story is being written is the constant restarting phenomenon--where critting partners get to read the opening chapter or chapters over and over again because the writer keeps editing and changing them (based on the feedback they receive) without ever finishing the story. There are ways to avoid this issue as well, but it can be challenging.
For instance, when talking about "drafts" there is often an assumption that one outlines so they know the major story elements and plot beforehand, then writes a complete first draft, then polishes it as a second, then writes a third or final draft. But many styles of writing don't create complete and distinct drafts, including various forms of pantsing or editing as one goes. Some people write their novels out of order too. Some adopt a chapter structure from the start, where others work in scenes and only decide where chapters should break later.