When I get updates for the Mac I always shut down and take them. They are followed by Adobe update for PDFs. UScert warned of PDFs as being a conduit for problems.
I long abstained from PDF updates. Then I took some. Safari started going down with notice of PDF as the culprit.
I shut down and when starting up again was asked to do PDF update, but hit delete all.
Are we best off to use Macs, and eschew anything common and popular, if we don't have IT support and staff?