Thin flickering lines appear between blocks while moving – RTX 4060, Minecraft Java Edition

While playing Minecraft Java Edition with an NVIDIA GeForce RTX 4060, I constantly see thin flickering lines between blocks, especially while moving around the world. The lines appear around 10–15 blocks in front of the player and seem to "jump" or flicker as the camera moves. They are more visible on flat surfaces like grass or stone.

The issue occurs both in fullscreen and windowed mode. I have tested with and without OptiFine, with different settings (mipmap levels, anti-aliasing, VBOs, Fast Render, etc.) but nothing helps. The game is running in Full HD (1920x1080). I also updated all NVIDIA drivers to the latest version.

I tested both vanilla Minecraft and OptiFine versions — the issue appears in both.