If you are looking to create your own version of this animation, there are community-shared resources available:
: Avoiding the "floaty" look of standard 3D animation by snapping between keyframes. ah_eto_bleh_guilty_gear_strive_animation
: Browsing communities like r/Guiltygear can provide references for the "bleh" pose applied to different cast members like Happy Chaos or Ramlethal . If you are looking to create your own