Debian missing firmware that should be present

I am currently switching from Windows to Linux on all of my Systems and now there is only my Laptop left. It is a Acer Nitro 5 AN517-52-514, on which I am trying to install Debian 12.0. The problem: Whenever I try to start the install of debian, I am greeted by the following messages and unable to start normally. It just goes into recovery mode: integrity: Problem loading x.509 certificate -65 \ integrity: Problem loading x.509 certificate -65 \ i915 0000:00:02.0: firmware: failed to load i915/kbl_dmc_ver1_04.bin (-2)\ iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-Quz-a0-hr-b0-59.ucode (-2)\ (the same message with a few more other versions)\ bluetooth hci0: firmware: failed to load intel/ibt-19-0-4.sfi (-2) Bluetooth: hci0: Failed to load Intel firmware file (-2) I am especially confused by the iwlwifi firmware missing, since I installed the package and by the i915 one, since I installed it after the guide on debian.org. I aquired the file for the ibt firmware, but do not know where to put it so it gets detected. I have already tried installing firmware-linux-nonfree.