Comment 81 for bug 1926938

@hashratez
right/official command (without adding any 3rd repository) is:
sudo apt install --install-recommends linux-generic-hwe-20.04
on officialy supported HW is done automatically, on other you must manualy run for upgrade to latest HWE line, more info: https://wiki.ubuntu.com/Kernel/LTSEnablementStack

@blueorange589
yes, about it is whole this bug report, newer that 5.11.15 "Ubuntu Mainline Kernel Builds" need libc >=2.33 for installing all packages... if you not need adding 3rd modules/drivers (nvidia, virtualbox, some unsupported wifi/lan card,...) then simple not install problematic one package: "linux-headers-....._amd64.deb" and error is gone...