Do you have any chance rolling back to Fedora 44? I hope you have created a backup before updating.
What does coredumpctl list show? You can use coredumpctl debug to analyze the more interesting of these. You might want to have a look at the executables/libraries involved and check whether there are newer versions of these packages.
If you want to go the risky way and updates-testing is already disabled, you might try enabling it again, so you get the latest bugfixes as soon as they appear.
Unfortunately I had to re-install Fedora (44) on my system. I had back-ups… old ones. I just got some important files via the live-boot on my external disk and reinstalled the system.