High-speed video (HFR)
You got one of these fancy camera that can do over 120 FPS. Not enough light = noise, check DE:Noise. At 240 FPS now light strobes like crazy during playback, we have DE:Flicker for that. It’s not slow enough, super-slowmo it with Twixtor.
For live-event videographers
You shoot in places where you don’t have much control on the lighting. DE:Noise will allow you to remove camera flashes. Twixtor will allow you to make that special moment last longer. You get some video from others or have a 2 camera setup. RE:Match Color might be helpful.