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I agree about a neutral background, but that's not all. When I was shooting product reviews for my channel, I realized that just a plain white wall is kinda boring and your eyes get tired fast. It works best when there's some semi-light background behind you, like light blinds or even just books on a shelf. The main thing is that it should be neutral, but not flat. A matte background, by the way, shoots better than a glossy one - you won't get reflections and distracting glare on camera.
If we're talking about lighting, that's more important than the background itself. I usually put a lamp to the side or from above so the face is clearly visible, but without harsh shadows. Viewers actually pay more attention to that than to what's behind you. By the way, I'd recommend avoiding a window with direct sunlight behind you - you'll end up looking like a silhouette, and that's not good.
And one more thing - if you have the budget for it, you can get a simple fabric backdrop in a neutral color. It costs almost nothing, but looks way more professional than a wall. If you're only shooting your computer and hands, you can skip it, but if you're gonna be in the shot yourself, it makes sense to get one.
The main rule is that the background shouldn't distract from the main subject of your video, which is you and your computer. A neutral background works best: a simple white, gray, or black wall. If staring at a bare wall seems boring, you can hang a shelf with some hardware (graphics cards, processors in boxes look pretty good), but only if it fits your channel's theme. The key thing is that it should be in focus or semi-focus, not a blurry mess in the back. Honestly, lighting is way more important than the background here.
If you're filming at a desk, you can use a blurred background - shoot with bokeh on your phone/camera, and then even a cluttered desk behind you won't be visible. Actually, a good tech YouTuber can film even in a garage if it's interesting and well-lit. Examples: some people deliberately put a shelf with various hardware behind them, others use a plain wall with their channel logo.
Here's a tip: first check how your background looks on a smartphone screen, like a regular viewer would see it. If it seems distracting or looks cheap, move a lamp around, remove something, or hang a neutral piece of fabric. In 2026, people don't require expensive set decorations in tech videos anymore - the main thing is informative content and good lighting.
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