I used Lotus Notes until 2022, in a British blue-chip company. Stopped because I left that company - I am almost certain they're still using it, because they weren't close to migrating off the last few use cases.

It was universally hated because it felt so clunky and old-fashioned, but it was being used for ERP-type applications with a lot of business process logic that had developed over time. I found it interesting that you could click through the interface and find a lot of capabilities that were vestigial, still present but unused because they were made obsolete by web apps.

I just searched and I see that it was rebranded HCL Notes in 2019. I don't remember that branding at all. It seems likely we were stuck on an obsolete, non-rebranded version, deployed on local servers.

I was at a big European company that was also somehow still on Lotus Notes in 2015, for similar reasons. Moving back to Outlook after my 5 years there was a breath of fresh air.. for a time.

I do have to say Microsoft has spent the last decade "upgrading" their product to be a similarly painful experience though.

> that you could click through the interface and find a lot of capabilities that were vestigial

Lotus Notes allows you to right-click on a "document" and see absolutely all data attached to it, directly in the UI, including access permissions. This can be immensely useful, because not all data could be part of its UI representation.

The closest to this today would be inspecting the JSON data on your browser networking tab to view what your app exchanges with the server, but its much more clunky.