PC owners technically have full admin rights to their operating systems, therefore with the correct knowledge and tools, they are able to inspect and modify any aspects of any programs running on it, including any game DRM checks.

Therefore all modern PC anti-piracy schemes are built on the principle of obfuscation, just scramble the piece of code and make it a huge headache for a human to descramble and reverse engineer to skip all the checks.

Therefore it is only a matter of time before all the checks are found. PC game publishers now only uses this time difference to cover themselves to sell most of the expected sales, and update the game once one major version has been cracked to protect their online gaming services as much as possible from cheating.

Console disc-based copy protection however still relies on hardware. Discs are produced to contain errors that are genuinely impossible to replicate as long as you don't have the original stamps, and the disc drives contain special firmware to look for those errors. Consoles check these areas to determine if a disc is genuine or a burned/pirated pressed copy.

Console digital copy protection works on the assumption that console owners DO NOT have full admin rights to the OS, and therefore the hardware encrypts EVERYTHING to prevent inspection and modification of the code as much as possible, guarding the code even from users.