To enable Developer Options follow these steps:-

On every Android smartphone brand (except Xiaomi, Redmi, POCO)
1. Open Settings.
2. Go to About Device (or About Phone).
3. Tap on Version.
4. Tap Build Number 7 times until you see the "You are now a developer!" toast message.

To Access: Go back to Settings > Additional Settings > Developer Options.

Xiaomi uses its own version numbering instead of the standard Android build number:

1. Open Settings.
2. Tap About Phone.
3. Tap MIUI Version (or OS Version on HyperOS) 7 times.

To Access: Go back to Settings > Additional Settings > Developer Options.