Due to the pandemic, the UFC has used the UFC APEX to host events in the United States after the Nevada State Athletic Commission reopened combat sporting events in the state.
The events at the APEX facility were fought inside a smaller octagon than the regular-sized ones used at most UFC events. The one in the facility is 25ft compared to the larger 30ft octagon that we usually see.
UFC Apex: Smaller Cage = Bigger Action?
With the smaller octagon, there has been discussion whether the fights have been more exciting in the 25ft cage as opposed to the 30ft one as it forces the action more due to there being less room to maneuver causing the fighters to engage each other on a more frequent basis.