It floors me that they haven't addressed the underlying architecture issues that made Issues unusable: Issues are only for a single repo. Business users don't (and shouldn't) know what repo to add an Issue to. This is why we moved away from Issues and none of these new visualizations make the product usable until they deliver multi-repo issues.
The new project experience allows you to track issues that are in different projects, prioritise them alongside each other etc. I work at GitHub where we've been trying this out for a while and it's working pretty well so far for a bunch of the projects I work on when you need that cross-project visibility and co-ordination.
1. Issues that can be linked to other issues (regardless of repo), i.e. local issue blocked by remote issue
2. Projects that can contain issues from multiple repos, even a mix of public and private repos
Please say this is now possible, otherwise we too are looking at Linear, Jira, etc when we'd like to be looking at Github.