Having the sandboxed Google Play services would be wonderful. I'm currently using LineageOS with microG and Aurora store, but quite a lot of apps do not properly run with microG. Having some kind of fallback alternative in a second user or even better a work profile would be great.
Not sure if this is acceptable to you, but Uber has a web app at <https://m.uber.com>. I seem to recall that you have to "request" access in order to use it, but it was an automated rubber-stamp thing. The only downside (besides what you'd expect for a web app vs a native app) is that you can't do fancy things like multiple destinations in one trip, or changing your destination on the fly.
