Hey, Woot!, might want to fix this:
Your phone will automatically receive the latest OS and security updates for at least 3 years;
It’s actually “at least 3 years from when the device first became available”, which for the Pixel 5 is only one year away (October 2023).
Less important, you say the bootloader is unlocked. That’s almost certainly untrue. ITYM that the bootloader is unlockable - the user isn’t prevented from unlocking it as with some models (e.g. those from Verizon) - the user still has to take steps to actually unlock it.