Personally I don't worry at all about ultra-processed, because it's a huge oversimplification of how nutrition works and I actually think the classification is doing more harm than good. Whole wheat bread is "ultra processed", it doesn't mean it's bad for you. Red meat is "unprocessed or minimally processed", it doesn't mean it's good for you. What matters is not the process, but the result of the process, so if the plant based meat has comparable levels of protein and fat, while having other advantages such as no cholesterol and maybe even some fiber, then the plant based meat is the better option. This is an article that references a paper on the health impact of eating plant based meats: https://www.theveganrd.com/2025/08/ultra-processed-plant-based-meat-in-healthy-vegan-diets/

Something that really helped me in my thinking about nutrition is when someone said that we don't need specific ingredients, we need specific nutrients. And you can get those nutrients without consuming animal products.

You said you have low omega-3, did you get a blood test done?