On Apple devices, you need macOS 11+ and Intel or Apple Silicon (M series) hardware, while Windows 10+ and 64-bit (no 32-bit or ARM) CPU support is required.
Each Google One user (including those in your family group) can have up to six devices using the VPN. This opens a small window to turn on/off the virtual private network.
A VPN key with signals that radiate out the top-left corner and a green checkmark will appear in your Windows taskbar or macOS menu bar.