I have looked at the logs and seeing this:

If I'm understanding this, does the system tries to Swap to crypto swap file?
My HDD is encrypted and I set up a regular swap file...

# /etc/fstab: static file system information.

#

# Use 'blkid' to print the universally unique identifier for a

# device; this may be used with UUID= as a more robust way to name devices

# that works even if disks are added and removed. See fstab(5).

#

# <file system> <mount point>   <type>  <options>       <dump>  <pass>

/dev/mapper/vgubuntu-root /               ext4    errors=remount-ro 0       1

# /boot was on /dev/nvme0n1p2 during installation

UUID=ebdb51fe-2271-4425-951a-825066ef4e7b /boot           ext4    defaults        0       2

# /boot/efi was on /dev/nvme0n1p1 during installation

UUID=0441-297F  /boot/efi       vfat    umask=0077      0       1

/dev/mapper/vgubuntu-swap_1 none            swap    sw              0       0

/swapfile swap swap defaults 0 0

I just got another random freeze (7 days after the first one) which I had to reset my laptop for, with the following logs:

18:52:30 kernel: sof-audio-pci 0000:00:1f.3: error: no reply expected, received 0x0

18:52:30 gdm-session-wor: gkr-pam: unable to locate daemon control file

18:52:20 wpa_supplicant: nl80211: Failed to create a P2P Device interface p2p-dev-wlp0s20f3

18:52:20 kernel: iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS

18:52:19 systemd: Failed to start Cryptography Setup for cryptswap.

18:52:19 systemd-cryptse: crypt_init() failed: Block device required

18:52:19 kernel: sof-audio-pci 0000:00:1f.3: error: no reply expected, received 0x0

18:52:19 systemd: Failed to start Cryptography Setup for cryptswap.

18:52:19 systemd-cryptse: crypt_init() failed: Block device required

18:52:18 systemd: Failed to start Cryptography Setup for cryptswap.

18:52:18 systemd-cryptse: crypt_init() failed: Block device required

18:52:18 kernel: ACPI Error: Aborting method _SB.HIDD._DSM due to previous error (AE_AML_OPERAND_TYPE) (20190816/psparse-529)

18:52:18 kernel: crypt_init() failed: Block device required

18:52:18 kernel: Device /cryptswap doesn't exist or access denied.

18:52:18 kernel: Failed to start Cryptography Setup for cryptswap.

18:52:18 kernel: Initramfs unpacking failed: Decoding failed



# /etc/fstab: static file system information.

#

# Use 'blkid' to print the universally unique identifier for a

# device; this may be used with UUID= as a more robust way to name devices

# that works even if disks are added and removed. See fstab(5).

#

# <file system> <mount point>   <type>  <options>       <dump>  <pass>

/dev/mapper/vgubuntu-root /               ext4    errors=remount-ro 0       1

# /boot was on /dev/nvme0n1p2 during installation

UUID=ebdb51fe-2271-4425-951a-825066ef4e7b /boot           ext4    defaults        0       2

# /boot/efi was on /dev/nvme0n1p1 during installation

UUID=0441-297F  /boot/efi       vfat    umask=0077      0       1

/swapfile swap swap defaults 0 0

Adding /etc/crypttab:

nvme0n1p3_crypt UUID=bca86e55-cc12-4b54-ba1e-61856cc8db55 none luks,discard

cryptswap /cryptswap /dev/urandom swap