I manage a WordPress site hosted on SiteGround for a friend.
The website keeps going down due to updates of some sort or another, and I'm trying to resolve this issue.
SiteGround forces major and minor auto-updates at least every 3 days (if available), and offers the option to autoupdate plugins (which I have on).
Inside of the WordPress admin page, none of the plugins are set to auto-update, and I can see some offering to update individually/manually.
My question is this: what is the intended update model for WordPress? Should I just set everything to autoupdate to the extent possible? Although I'm facing issues now, my other software experiences tell me this is a bad idea. I'm used to "update when you want or need a new feature, but nothing will break if you don't", but is this just not how WordPress was designed?
Thanks!
Also, it's interesting that the situation in the OP's graph looked to be getting better over time, in that around 2015 the ratio was more like 10-12x (apparently down to 6x).