Certain Apps crashes in Catalina I last few days I noticed that some Apps are crashing and/or reporting unexpected quit. Photo Booth does this after few seconds (crashes) and RStudio reports unexpected quit and gives a crash report after normal Quit (Cmd+Q).

I am under the latest macOS Catalina, and I am using the latest RStudio 1.2.5033. (I cannot see details of Photo Booth as it crashes too quickly.)

Is anyone experiencing the same? Any fixes?
Without considerably more information, it's impossible to pinpoint the cause.

However, PhotoBooth is an Apple-supplied app that comes with the OS, so it should not crash under normal conditions. The likelihood is that you've got something installed which is causing both these apps to crash. 

I would recommend using EtreCheck, which is an excellent app that gives you a report of the 'state' of your system. It highlights third-party additions that are potential sources of problems, particularly if they are old and no longer compatible with a new OS.

You can upload the contents of the report here (or somewhere list Pastebin) if you need more help.