Hi there!
This is feedback on the new placement of "Projects I'm On" and "Projects I Own" In the Projects header area. I understand this was to increase the visibility of these options, but from a UI perspective, it is leading our users to think these can be used as supplemental to any filtering options they've already applied to the project list.
For example, someone has selected a View, Filter, and Grouping, with a filter for certain project attributes, which narrows the list of projects accordingly. Then they think when they select either Project I'm On or Projects I Own, Workfront will further narrow the existing list by this additional criteria (not just completely change the filter.) The expectation is that it will act as a 'refine filter' capability and they're disoriented when it gets rid of the filter they had configured/selected.
I can sort of see where they're coming from, the placement and visual treatment of these new options does make it seem like it's different from setting a filter through the filter control. These are users in NWE, by the way, and many of them never used Classic.
Final 2 cents is that I think it would actually be really cool if it did work the way they think it does :-).
Thanks!