...
Does work on Tutor count?
Yes. Tutor is the official, endorsed community-supported deployment platform for Open edX, so work done within that context counts and is covered by OEP-55 and OEP-54 - specifically, building/maintaining the open source Tutor base and plugins which are officially supported by the Open edX project (this excludes for example Cairn).
Also note that Tutor forums are in the process part of moving to the official Open edX forums: see the banner at https://discuss.overhang.io/ banner (although people do still post in the old forums). It's also possible to pull Github issues from other orgs into openedx project boards by simply adding their URLs in the "+" field of any openedx board view. There are also discussions about moving tickets to the Open edX discourse & github.
...