You’re out the loop and someone is out of the loo.
I have hope for RedReader. This is my favourite reddit app. And it’s foss.
I don’t remember exactly but when I exported my google calendar to switch to framagenda I failed twice before finding the right format. I would advise you to try every format available.
Did you chose the right export format from gmail/Google contacts?
My use is not foss because I didn’t find something that fits my needs better than Inoreader. There is the android app which works fine and also a very nice web interface that I can use at work because without thumbnails it looks like a ‘boring’ list of stuff.
Could you also share the differences you perceived between Arch and Void ?