A rant about how standing up from guard is just as valid a technique as sweeps and submissions. And when it comes to self defense the technical standup is absolutely critical! Check out https://www.grapplearts.com/selfdefenseguard for more examples of how the standup gets integrated into your guard game, and/or check out the related videos below:

How to Set Up Sweeps, Attacks, & Standups from The Guard

How to Use a Wall or a Fence While Grappling

BJJ Self Defense Lesson 4: The Technical Standup

The Three Most Critical Concepts of BJJ

Getting Back to Your Feet From Closed Guard