Weird grid lines / meshes / pixelated stuff on particle effects (smokes, fires, etc) even on max settings

[Neyo]

This is not my description, this is a reddit post I found, but I have the same issue.
https://www.reddit.com/r/Helldivers/comments/1asnpu8/weird_grid_lines_meshes_pixelated_stuff_on/

"Unfortunately I have some very weird grid lines / meshes on particle effects. It looks like there is a transparent chess board on them. They are on smoke, fire, even on bug blood and robot particles when its splashing out of them (although mostly on stationary things like burning wrecks, they arent really on explosions from stratagems). Since days I'm trying to figure out the problem. I tried everything. Different in game settings (I have everything on ultra usually and play on native render scaling (1080p)), monitor settings, Nvidia settings, drivers etc. This is the only game where something like this happens.

Anyone experiencing the same or have found a solution?

Couple of pictures for reference how these grid lines/meshes look like, you can get the rough idea, but this is the same even at max settings (render set to native, everything else to Ultra), during game it looks even worse than in the screenshots:

https://imgur.com/a/0t0FFHE

Ryzen 5 5600x

RTX 3070Ti
Windows 11"

My pc also has a 3070 and an i7 13700kf
and one more reddit thread talking about the issue:
https://www.reddit.com/r/Helldivers/comments/1ancrq3/weird_graphics_of_smoke_effects/

[Dark_Templar]

Bump

[GlassTank]

Try setting render scale to ultra supersampling. Might lessen the pixelization effect.

[Choopapus]

- Anti aliasing OFF,
- Particle quality HIGH (it looks like this setting is bugged right now, because anything other then HIGH doesn’t look to change much),
- Textures HIGH / ULTRA
- Native resolution
Fixed it for me
I’m using reshade SMAA instead of game's
TAA which for some reason introduces mesh like effect on some textures