Absolutely. While Mojang is slowly adding "native" graphics features (like Render Dragon on Bedrock Edition), Java Edition still relies on mods for beauty. remain the most downloaded "performance shader" on CurseForge for a reason.
Follow these steps in order. Do not skip the OptiFine installation, or the game will crash. sildurs vibrant lite shaders
Open Shaders > Shader Options while in-game. Absolutely
Shaders require a mod loader. You have two choices: sildurs vibrant lite shaders