Changing the name of your Personal Hotspot on your iPhone actually means changing the name of your device. The name of the Personal Hotspot is the same as the name of your iPhone. Here are the steps to change the name of your iPhone, which is also the name of a hotspot:
Open Settings
On your iPhone, open the Settings app.
Go to About Phone
Tap "General" and then select "About This Mac".
Change the name
Click on the "Name" option. The current name shown here is your Personal Hotspot name.
In the edit box that pops up, enter the new name you want.
Complete the changes
Once you've entered a new name, tap "Done". Now, both your iPhone and Personal Hotspot will use this new name.
Device Identification: When you change the name, your iPhone will show a new name when paired with another device, such as Bluetooth, Airdrop, or Personal Hotspot.
Concise and easy to understand: For easy identification, it is recommended to use a simple and clear name.
Network and Bluetooth connectivity: Changing the device name won't affect your network and Bluetooth connection settings.
After you've completed the steps above, when you turn on Personal Hotspot again, your other devices will see the updated hotspot name. This way, you can more easily identify and connect to your own hotspots.