I run a SaaS business and I dropped Google Analytics a long, long time ago. Primarily because of the tracking, but also because I really couldn't see the value of the data.
In the old days, you could at least use the "Referer" (sic) header to know where people came from and what they searched for. But that is long gone, and the only source of that data is Google/Bing search console.
Page visits are a vanity metric: they tell me nothing about my business. The only thing that actually matters for a SaaS are signups and MRR. Measuring your business by page views is like measuring the business performance of a Walmart by counting cars on the freeway nearby. Yes, the numbers are somewhat related, but you can't draw any conclusions.
I made it a point not to include any third-party JavaScript on my site, but even if I were to make an exception for these analytics, I can't really see the point, unless you are running an ad-driven site where pageviews are king.