How can I compare the firmware and bootloader of the trezor i just received to the official versions on GitHub

As title said, for a safety check in case my trezor was fooled around with before in my hands, I need to do the above.

i went to: https://github.com/trezor/trezor-firmware

and it's just a wall of things I don't understand. Is there clearly a page on Trezor that simply states the current firmware + bootloader I should have? Thank you.