<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=386076) </details> <!--IssueSummary end--> The purpose of this issue is to explore what the ideal UX would be when installing and starting to use the GitLab for Slack app. For more context: - https://gitlab.com/groups/gitlab-org/-/epics/9220 - https://gitlab.com/gitlab-org/gitlab/-/issues/382347#note_1202193213