Excellent for high-end color grading (free version available).

Are you trying to apply a to your footage, or

In Lightroom Classic and Lightroom, the is strictly reserved for photo editing. While Lightroom can import and play MP4 videos, it does not function as a full-scale video editor. How to Edit Your MP4 in Lightroom

Select both the edited still and the original video in the Library. Click to apply the photo's look to the video. Better Alternatives for "Full Feature" Editing

If you are looking to "develop a full feature" video with advanced cutting, transitions, or complex grading, Lightroom is likely too limited. Consider these professional tools:

While in the Library module (press G or E ), look at the Quick Develop panel on the right side. You can adjust exposure, contrast, white balance, and vibrancy here.

If you need the full Develop toolset (like HSL or Detail sliders): Capture a "Poster Frame" (still image) from your video. Edit that still image in the Develop module .