My aim for upgrading my pc is to stream and record with multiple heavy softwares open without pixelation and drop of resolution when the game I’m playing is/gets heavy as I’m a vtuber.

I’ve been trying to find which pc parts affect it the most and from what I’ve searched it seems VRAM affects it (recommended 16gb) so I should most likely go for a gpu upgrade? But I’m wondering if there’s anything else that affects pixelation in gameplay during recording/streaming. Would be great if I get more insights on what i should be focusing on.

My current build is:
NVDIA GeForce RTX 3060ti, 8GB VRAM
AMD Ryzen 5 5600X 6 core processor
32GB RAM