I personally am fine with the inconvenience of using the web browser on mobile, instead of using apps. That way, I have more control (not complete control though) on what information these companies get. I don't think that would work easily with Instagram (which famously doesn't provide a web interface for uploading content and interacting within the platform, AFAIK). But it works with FB (which I reluctantly use for certain purposes to reach certain "for the greater good" audiences), Google products and such. Firefox Focus, private windows and tabs, content blockers — they all help to a good extent in preventing more information from being collected and mined. For all we know, mobile apps that interact with photos on the device are mining metadata even from photos that are not uploaded (from EXIF information) to "provide a better experience for users". When I use a browser, I know for sure that I'm giving the site access only to the photos of my choice and only during the span of time I actually do the act of uploading photos, and not to everything and not at all times while using that platform.

Apps are a lot more convenient, and most users wouldn't do what I do. So this is a compromise of sorts.