With new Dynamics 2018, there is a lot of improvement in a Web Client. One of the first improvements is availability of Print Preview for non-Internet Explorer browsers (Google Chrome, Microsoft Edge, Mozilla Firefox, Safari). In these cases, the Preview button didn’t appear on the request pages of reports. Now it exists.
We have possibilities to change size of previewed document, use “select text” or “pan the document”, as well as download document or print it from preview.
On the other side, now we can use Web Client as tool for user personalization. Of course, when we change something, it can be viewed in Windows Client as well, but place for configuration is Web Client.
I think that Web Client is good enough and it can be used as the main client (as we have in Dynamics 365 ‘Tenerife’); of course, some of the features are still better in Windows Client, but this client can be used in regular daily business (I know some of my colleagues will not agree with me, but I think this is more related with our habits). But I expect more and more new features in Web Client (we already saw future UX on Directions).
In some features, I more prefer Web Client in comparison with Windows Client (example is Ribbon on documents, where we have all actions for lines in the main ribbon).
OK, there is a still some limitations and you can find them on the following links for both, NAV 2018 and NAV 2017.
Browser Limitations with the Microsoft Dynamics NAV Web Client:
Feature Limitations of the Microsoft Dynamics NAV Web Client: