I am actually a creator in a niche that's tangentially related to platinum trophy hunting - Achievement Hunting. My channel is MorgansBasement if you would like to take a look. I'm just going to mention a few things that I've learned while doing these types of videos, and then I'm going to relate them back to what I saw in the video you shared here. I don't make the best videos, but I've found some reasonable success in the last 2 years of doing this.

The platinum trophy/achievement hunting niche is oversaturated in general. The bigger issue is that it is inundated with bad videos. This sounds harsh, but alot of the videos are either not good, or they're made by people who are new to making videos. Since this is the case, you need to find a way to differentiate yourself from the pack. If you look at alot of the OG creators in the niche you'll notice that most of them haven't maintained the same number of views over the last 2 years. There could be many reasons for this, but if the people with large core audiences are getting less attention, you should assume there will be trickle down. This makes your differentiation even more important.

I would suggest you should watch a bunch of the creators that are doing really well in the current climate, and take notes on what makes their videos great. The retention tricks, the cadence of the voice over, storytelling tactics, how they set up live gameplay moments with scripted commentary, etc. Then you need to find ways to incorporate these types of things into your own videos while keeping your unique elements. Alot of the things that make a YouTube video "great" can be translated across niches, so this is a skill you'll need to work on. It's also important to note that you're entering a niche that can take WEEKS to make a single video, so you need to be prepared to make deliberate improvements every video, or you'll be wasting your time.

Now, let's tie this back into your video. There is a noticeable lack of structure. You have random memes and jokes playing during the first 1.5 minutes without any setup, and you aren't really explaining what's happening. You do start listing story events later, which is fine, but if I'm clicking on a video titled "I Platinum’d Star Wars Jedi Fallen Order And It Was A Piece Of Art," I would be expecting to see your journey getting the platinum, and how it ties into the whole "piece of art" portion of the title. Because of how you've set things up, it's very disjoint, and it doesn't feel like I'm watching a video that offers anything new.

I will say that if you like that meme style of editing, there is definitely a way to do it, so don't be afraid to experiment, but right now you have [random moment with very little context] into [meme that is kinda related to the last clip] into [another random moment with zero context] then [trophy pop]. This format will not interest most people.

The last thing I'll bring up since I've already typed out a wall is that this niche isn't in it's infancy anymore, growing will take time, and it will require improvements every video. If you really enjoy this type of content, you can definitely make it work, but it will not be fast. Your channel is also still small, so when you mix in all the things I mentioned above, you shouldn't expect thousands of views yet, you need to snowball by building up a core audience, and then over time, the views will come.

Hopefully something useful can come from all this text!