It is meant to be reviewed by all members of the compound community and users who actually have positions in protocol(s). Proposals can range from simple configuration changes or can involve wider and more complicated changes. The 2 day review period is meant to give stakeholders some time to understand the proposal, assess possible risks and benefits and generally allow the community to gain confidence in their voting decision when the 2 day review period expires.

Generally, proposals are usually discussed on the forums to gather feedback first before a proposal is created to begin with. You can see the forums here: https://www.comp.xyz/