Is this good for anime screenshots from streaming video?

Yes, though compressed frames may still keep some artifacts.

Can I use 4x on character stickers?

Yes, especially for sticker packs that need cleaner edges at larger sizes.

Yes, but verify fine texture and gradients to avoid unnatural patterning.

Use an anime-friendly 4x upscaling workflow to enlarge artwork while keeping line quality and visual style intact.

Generic resizing smooths line art and introduces stair-step edges, especially in thin outlines and typography.

Use SR x4 as the primary engine when the goal is larger output with improved apparent detail.

If outlines look too hard, use the cleaner source image and rerun once. Multiple enhancement generations can drift style.