You're not wrong but Google in particular paved the way for not doing support, or doing as little support as possible, and oftentimes things only get actioned if you generate enough clout on social media to attract a Google engineer's attention.

It's hard to avoid the massive dependencies, especially if you're starting small and moving fast, because something like Google Workspace or MS 360 or Slack is cost-competitive compared to spinning up your own internal stack of tooling. At least until it isn't, but hopefully your startup has grown enough by then that it can afford to address these concerns.