https://github.com/bkw777/mainline
You can use the tool called mainline to install most kernels, newer and older are available…
That said, why are you trying to install an older kernel?
中文介绍
https://www.sysgeek.cn/ubuntu-install-linux-mainline-kernel/
参考
https://www.reddit.com/r/linuxmint/comments/11r62v0/tell_me_the_easiest_way_to_install_kernel_54_on/