Do you have GRUB? If yes you can edit your kernel command line and append “init=/bin/bash”, see if at least this gives you a prompt, this has saved me a couple of time in the past. Else booting on a USB and mounting your boot partition may help to fix it.
BTW I also have LUKS and I’m using TPM, using tpm2-initramfs-tool, first, it failed because I forgot the tpm modules in initrd, but I always have 2 kernels installed and only modify one initrd at a time to have a safe boot if I have a problem, like I had!
I tested tpm2-initramfs-tool with proper tpm2 modules and it worked.
I also tested with clevis-initramfs and clevis-tpm2 and it’s even easier, no messing with crypttab.
Also, as long as you can break GRUB and append “init=/bin/bash” it is not secure of course, you can then prevent grub editing or not using grub at all.
Use Ventoy, you can have dozens and dozens of ISO on one stick only, when you boot on it you can select the one you want.