The installation was very easy! It's very greatful that my data doesn't send to Google any more.
And welcome to software development. Every feature needs time (money), engineers (money), and testing (money). With most testing continuing in perpetuity because any pull request could break it.
And when you add on that graphene is a nonprofit baked FOSS project... Well, if it is as simple as you think it is then get to making a pull request, I guess?