Sometimes there are files in /etf/default/grub.d which override flags.
But from what I saw in the logs before the relevant settings appeared to
be in place:

[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.17.0-14-generic
root=UUID=e8ff0341-b108-49b8-83c1-9c80b50dee55 ro typec_ucsi.dyndbg=+pt
crash_kexec_post_notifiers panic_print=0x7 printk_always_kmsg_dump=1
panic=30 nmi_watchdog=1
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M

That was before asking about "oops=panic". It is possible to force a
normal crash to see whether things should work. That is by

- echo 1 | sudo tee /proc/sys/kernel/sysrq
  This allows all sysrq-triggers
- echo c | sudo tee /proc/sysrq-trigger
  This does the crash if all triggers are allowed

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https://bugs.launchpad.net/bugs/2141225

Title:
  Kernel panic when connecting USB-C Dell monitors on Ubuntu kernel
  6.17.0-14-generic

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