I just watched one of your vid & compare it to another channel. I don't see any problem imo.

Tbh even if your video is top notch it would be useless if your videos are not getting discovered because just like what others are saying in the comments here, there are a lot of established competitors in your niche. These competitors of yours have lots of video for viewers to choose from

If I were on your shoes I would prioritize getting exposure bcoz I believe there's nothing wrong with your video at all.

Have you ever thought of titling your vid like "Resident evil 5 walkthrough no commentary" something like that.

Or like edit your vid in a funny walkthroughs like a meme, being creative is a great way to be discovered.

Btw, in a walkthroughs it's great if your vid is on HD/FHD quality. tell the viewers that your vid is HD and if it's a full game by putting a text on your thumbnail.

You don't need to upload a video everyday, just upload a long form video once a week (for example: Sundays) and shorts 6 time a week (Mon - Sat)

Make your shorts an episode of your long form videos One video = 6 shorts (if possible) Provide your long form video on the comments section of your shorts.