You can be the photographer, or the videographer - but not both.
Videographer is constantly fighting to get a clear line of sight to the couple, same as the photographer. The photographer will pose & direct a couple, to create that perfect scene. Videographers are constantly shifting around, but silent. You can pull frames from a video to use as a photo, but you're not going to do a large print of it. You're not going to use speedlights with video. Stabilizers and mic's and so much stuff keep the camera in landscape mode, while photographers will pivot to a portrait orientation a lot. You know this stuff, hopefully this is taken as a gentle reminder.
Yes, setting up a few cameras & hitting record captures video. But to accomplish what clients want, you need multiple people shooting at the same time for different results. This isn't a solo endeavor.