Gmail is actively working to frustrate users into either paying or leaving the once free service in my opinion. The functionality of GMail has turned hostile towards free accounts in the past few years with constant notices of low storage (when there is still 20-15% remaining) to unnecessarily shrinking screen size of the email reading pane and insertion of ads into the UI. The configuration options are way too overcomplex for email, which has been around (without much functional advancement) for ages now.
If a service starts out promising users it will be free, it should be held to that standard. To this day I don't understand why gmail and msft don't show originating email addresses (without needing to click on anything to see them) in order to reduce phishing and other mail scams, but in 2020 apparently frustrating users is much better for company profit than making and maintaining a highly useful and functional product...
There are people who will say it's their product and it's free, but yes, that's what they promised to get us all to sign up to it years ago. Now that so many people use it unknowingly for IDAM, quitting it may not even be a good option, meaning that if charges are levied, it's borderline extortion by Google.
I pay and sponsor Google in many other ways for using their services and product. They should have not lied if they wanted to convert Gmail from a free service into a paid service.