MacBook Pro Booting Issue

I am seeking assistance with an issue I encountered while attempting to sell my MacBook Pro 2018. In order to perform a clean install of the Big Sur operating system, I deleted the volumes \"Macintosh HD\" and \"Macintosh HD - Data\" from my drive. To proceed with the installation, I created a bootable USB drive using a separate computer. However, when I try to use the USB drive to reinstall the OS on my MacBook, I am immediately greeted with a crossed out folder icon. Additionally, Internet Recovery mode fails to work and displays an error message (-2008F). I have attempted using the CMD-R command, but instead of entering recovery mode, it initiates an internet recovery process which ends in failure as before. When I connect the bootable drive and hold the option key, I am able to access the bootable drive selection screen. However, upon clicking the arrow to launch from the USB, it redirects me back to the internet recovery mode. I have also tried the CMD-Option-P-R command, and reset the System Management Controller (SMC) but it has not resolved the issue. I would greatly appreciate any tips or suggestions that I may not have yet attempted.