This is how your visa should look:
Expires on: This is the date until which the visa is valid. It's 3 days from the COVID-19 test. This means that you need to enter the Bahamas on or before 11:59 pm on that date. The visa is only required to enter the Bahamas.
QR code: The image you see is the QR code. It can only be scanned by the authorities. You can show it on your Atlys app, phone or print the visa out. It's not required to print the visa.
International Air: It shows the mode of transportation. It's not important i.e. you can go via a ship or a private jet without having to change this.