On boards that have full USB support, you can still choose to install CircuitPython as a .bin file. This is will skip the TinyUF2 installation,. Note that if you do that, you will overwrite TinyUF2 if it is on the board, and it will no longer be available until you install it again.

Choose Install CircuitPython Bin Only from the installer menu dialog box.

You will see the dialog boxes for making a serial connection and erasing flash, as described on the Boards With Full USB Support page.

First you'll see Connect to Your Board (click for details) and you'll select the serial port.

Next you'll see the Erase Flash box (click for more details). In general, don't skip erasing the board.

Finally you'll see this Flashing ... box, showing that the installer is flashing the CircuitPython .bin file to the board. When it finishes, you'll be done.