" macOS 15.2 " ?
1 - Update to current Sequoia
About the security content of macOS Sequoia 15.5
Keep your Mac up to date
Always make a Time Machine Backup before doing any upDates
2 - In regards to Trackpad
Restart in Safe Mode.
This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts.
The boot up will be slow and can take some time - Normal.
Safe Mode will also eliminate Third Party Software, extensions and drivers from loading.
It will only load the Minimum amount of Core Apple Processes to allow the the computer to function at a reduced Level of Performance
Does the issue present in this mode ?