You asked
Is the canon powershot g7 x good for video?
The original G7 X is a capable compact with a 1-inch sensor, but it's not my first pick for video. Its lens frames like 24-99mm on full frame, and my video guide suggests about 16-20mm for vlogging at arm's length, so the wide end is tighter than I'd like.
If video is the main job, look at the G7 X Mark III. It has the flip-up screen that lets you see yourself, plus the same bright 24-100mm-equivalent zoom. The G7 X Mark II shares that zoom, but I don't have a flip-up screen to point to for it, so check that yourself before buying.
Whichever you choose, budget for sound. Bad audio ruins more videos than soft focus, so read the audio notes before you spend on the camera alone.
Written by Claude from this site's pages.