These instructions are meant for a system with EFI, systemd-boot and deb based packages. Adjust them to your needs.
Reference: https://www.kernel.org/doc/Documentation/acpi/initrd_table_override.txt
See also https://github.com/lbschenkel/acer-sf314_43-acpi-patch
ACPICA tools: https://acpica.org/downloads
sudo apt install acpica-tools
Extract the acpi tables
mkdir acpi && cd acpi
sudo acpidump -b
Disassemble the tables
iasl -d dsdt.dat
Modify or patch the tables
vim dsdt.dsl
Assemble the custom tables
iasl -sa dsdt.dsl
Generate the cpio file for initrd
cd ..
mkdir -p kernel/firmware/acpi
cp acpi/dsdt.aml kernel/firmware/acpi/
find kernel | cpio -H newc --create > patched_acpi_tables.cpio
Copy the cpio file with the custom tables where it can be addressed by the EFI boot
sudo mkdir /boot/efi/EFI/acpi
sudo cp patched_acpi_tables.cpio /boot/efi/EFI/acpi/
Edit the entry sudo vim /boot/efi/loader/entries/Pop_OS-current.conf
linux /EFI/...
initrd /EFI/acpi/patched_acpi_tables.cpio
initrd /EFI/Pop_OS-.../initrd.img
options ...