The most important reason the column is fixed width is for customers who have multiple project groups to ensure all the groups align.
There's no plans in the near future for any changes to the dashboard. It's been quite difficult to balance all the demands for the dashboard. We've had to factor in many various scenarios to accommodate different configurations. Customers with short names, others with very long names and no characters to break on, others may use hyphens, or slashes or any symbol not just full stops to break apart names, so it's not feasible to split on every possible setup people may have.
Do you depend on the projects being named that way for other code/processes to find them? Could you rename them with spaces instead of full stops, and if there was code to find them adjust it to also use spaces?
We definetely don't want to rename them just to make the deploy gui happy. The namespaced names are used throghout are pipeline.
I totally understand that it's difficult to cater to every single need. Still, this wasn't a problem in Octopus 3.0. Something like "if there's a lot of screen estate, expand the left column" should be possible to implement?
We did make some big improvements in 4.0, we understand and have had feedback where people liked things how they were in 3.0, but overall the feedback has been good as there's a lot more consistency now, at the cost of some things like this being not ideal.
There's no short term work on the dashboard that your request can be attached to for further consideration. So all I can suggest is add a comment to this issue https://github.com/OctopusDeploy/Issues/issues/341 which will be a large piece of work sometime in the future to add additional functionality to the dashboard, include the screen shot you added here.
It's tricky to say "not at the moment" to reasonable requests but we do get a lot of requests for adjustments to the application, there's many things that they need to be prioritized against, from working on our big ticket features listed on the road map to bugs that stop people doing work.