1.) Delegated tasks or tasks received because of substitution rules are always shown as "Substitution". This confuses people sometimes, because they then might think they will receive all of the delegators tasks. It would be better to show delegated tasks as Delegated.
2.) Since we updated to Version 2019 and 2020 we lost the functionality for users to create substitutions for other colleagues. They can open the form, but cant choose anyone properly in the person fields then as Substitute. The option was there with the sharepoint substitution webpart in earlier versions, but now only Admins can create substitution entries for other people. It would be good if the option would be given to business administrators for example, or even everyone. If there is an option to change this already please let me know! :)
Thanks for all your hard work, we really love Webcon!