No, but that's only because I hate Excel. But I'm sure developers who don't hate it but also appreciate FOSS solutions might be interested, if the pay is good.
Access = LibreOffice Base
Visio = LibreOffice Impress
Outlook = Schleswig-Holstein already switched successfully to Open-Xchange and Thunderbird, I've not heard of them running into any major issues with this setup.
I find that highly unlikely given how much commercial agreements with MS costs.
But if that's the case then they should either look for a different COTS solution, and/or change their business workflow.
And in the event even that is unfeasible, then just continue to keep a few windows machines (maybe convert them to VMs or VDIs for ease of maintenance) for the few users that can't be migrated.
Access = LibreOffice Base
Visio = LibreOffice Impress
Outlook = Schleswig-Holstein already switched successfully to Open-Xchange and Thunderbird, I've not heard of them running into any major issues with this setup.