I have problems using my Samsung Galaxy S20 Ultra 5G as a WiFi hotspot

Slide two fingers downwards starting from the top of the screen.

Press the settings icon.

Press Connections.

Press Mobile Hotspot and Tethering.

Press Mobile Hotspot.

Press the menu icon.

Press Configure Mobile Hotspot.

Press the field below 'Network name' and key in the required name.

Press the drop down list next to 'Security'.

Press WPA2 PSK to password protect your WiFi hotspot.

The password prevents others from accessing your WiFi hotspot without your approval.

Press the field below 'Password' and key in the required password.

Press Save.

Press the indicator below 'Mobile Hotspot' to turn on the function.

Press the Home key to return to the home screen.

Turn on WiFi on the other device.

Find the list of available WiFi networks and select your own WiFi hotspot.

Key in the password for your WiFi hotspot and establish the connection.

When the connection is established, you can access the internet from the other device.