Have looked very closely at the Etrecheck Report looking for Specific Issues related to this computer.
Below are the finding and suggestion for remedial actions by the User enact.
Problem: Other problem
Description: Messages app not displaying images.
Major Issues:
Q1 - Unsigned files - There are unsigned software files installed that could be malicious and should be reviewed.
A1 - Worthy of the User time to consider reviewing the software on the computer and perhaps also use the below Software to Scan for Malware / Adware.
A1- The Application will offer to Quarantine the malware / Adware and may even offer to remove it
A1 - It is suggested, download directly from the Developer , the application Malwarebytes for Mac.
It is free or paid for added features.
Run the Application and it should remove the malware / adware. Once done, restart computer and test.
Minor Issues:
Q2 - Unsigned files - There are unsigned software files installed. These files could be old, incompatible, and cause problems. They should be reviewed.
A2 - Worthy for the User to consider reviewing the software on the computer for updates or upGrades of exiting Software and / or find replacement software that is Ventura Compatible
Q3 - System modifications - There are a large number of system modifications running in the background.
A3 - Anytime a computer is running wit large number of Modification, be is on purpose or by installing Third Party Application that modify the Operating System, there are consequences including what the computer is expiring now.
Q4 - AntivirusforMac.app
Q4 - Antivirus software: Apple and Bitdefender
A4 - There are no known Windows-like Viruses in the wild that self replicate and affect macOS, because of the underling UNIX Foundation and Permission Limitation.
Additionally, and specific to Big Sur macOS 11, Monterey macOS 12, Ventura macOS 13, the Operating System resides in a Sealed and Read Only Volume that can not be opened by the User and protects against from “ Bad Actor “ Software.
The Only thing this Antivirus software is protecting is the Bank Account of the Developers and for zero return to the User aside from the problems this software creates.
AntiVirus Developers purposefully Market their product to create a “ Fear Factor “. In so doing, creating a False Need for their Product.
The The Built in Security is all that is required to protect the computer.
A4 - Any Third Party Applications that will interfere with the normal operation of the OS, is an invitation for disaster and comprising the Operating System
Certain Applications maybe available on the Apple Apps Store - this only means the Developer is prepared to pay Apple a portion on each sale. What the Application may do to the computer is up to the User to check this out before purchase
Any of the below should be removed as per Developers Instructions
This will include CleanMyMac , This will include BitDefender ,
This will included Norton Antivirus , Sophos Av Software
Intego AntiVirus, McAfee, MacKeeper, Avast AntiVirus
Ad Guard, Webroot , ESET , Kaspersky Antivirus. Anti virus
AVG AntiVirus PowerMyMac
Trustee Total AV avira antivirus Dr Cleaner Pro Plus
AntiVirus for Mac
Read some of the posting and arrive at your own conclusions.
There has been sufficient advise offered for the User to make an informed and educated choice what the next course of action is required for this computer.
The suggestions have been put forth on a volunteer basis, in good faith and in the best interests of the computer.