Windows 10/11: Settings → Apps → Default apps → Web browser → Select Chrome
Windows 10/11 (alternative): Settings → Apps → Default apps → Choose a default by app → Google Chrome → Set default
macOS: System Settings → Desktop & Dock → Default web browser → Select Google Chrome
macOS (older): System Preferences → General → Default web browser → Select Google Chrome
Android: Settings → Apps → Default apps → Browser app → Select Chrome
Android (alternative): Open Chrome → Tap More (three dots) → Settings → Default browser → Set as default
iPhone/iPad (iOS/iPadOS): Settings → Chrome → Default Browser App → Select Chrome
iPhone/iPad (alternative): Open Chrome → Tap More (three dots) → Settings → Default Browser App → Set Chrome as default