Except a lot of these are problems with so-called native apps too. My experience using MacOS for the better half of a decade ended with >80% of the software I paid for being unsupported. My options were to continue using a non-secure OS version or update to an environment where my software doesn't run anymore.

I think you're the last of a dying breed of users. The iPhone generation doesn't lose their internet connection, throw a hissy-fit when UX changes or even care all that much when data is on a remote server. They will pay for whatever is successfully marketed to them, and that company will be rewarded with success. This is what the App Store conditions users into wanting, if OnePass tells you to switch to their Electron app then you have zero choice in the matter.

My solution has simply been to never pay for software. Not native, not SaaS webapps, not Electron containers. It's all just one big scam when free alternatives to 99% of meaningful software exists if you're willing to eschew laziness.