After using #fedilab #android app a few months, if I had one piece of feedback I think would help improve the app it would be to have options on how many hours or days the timeline would display. I typically check the #timeline 2 times a day and after scrolling past the edge of the feed it wants to immediately jump me to the last hour or two when I missed 6 hours in between.
I'm not really sure exactly how this should change but currently the buttons are easy to miss and a lot of content in the feed is accidently not shown which IMO isn't really great the way it currently is.
In other ways though its still the best I have and will be with me until I ditch android altogether.