Open the downloaded file and drag the SwitchResX icon to your Applications folder (or use the included installer).
macOS (Universal for Intel and Apple Silicon M1/M2/M3) License: Shareware (Free to try for 10 days) How to Download & Install SwitchResX 4 for Mac Free Download
Link specific display settings to certain applications—automatically switch to a movie-friendly setup when you open VLC or a high-res layout for Photoshop. Open the downloaded file and drag the SwitchResX