Can't find an appropriate thread, so adding hoping for some guidance.
1. Filter Availability on Boards
The look and UI changes for JIRA are nice, but seriously disrupt some of the convenience of the current version. Specifically, managing large boards have lost a great deal of speed.
For example, our Unified SW board is used to coordinate work across several teams, many working on multiple projects. Our current board is set up with all the relevant filters at the top of the screen allowing us to quickly reorganize views as we move from team-to-team

The new design appears to abandon this ability to view all filters simultaneously. Instead, it forces us to search for all the filters individually.

We built these complicated filters in advance specifically to avoid any need to 'search' for anything. We have it all at our fingertips, right now. This new design will abandon this ease of use for us.
I hope this is just an oversight in not understanding the new UI, and have completely missed the ability to still see all filters simultaneously.
2. Where is the "Boards" link?
The new UI doesn't appear to have a 'Boards" link? The only way to find the previously mentioned Unified SW board (which encompasses all projects) is to go to the widget for the current sprint remaining and select it from there. Since this board isn't linked to a specific project, it doesn't have a project link to appear under.

Hopefully, these are all temporary issues that will be addressed.
Thanks,
D.