"Do you find the dying practicality of desktop apps to be accurate, or overblown?"I think the death of desktop apps to be a bit of an overblown claim. But it's true that developing a fast, native desktop app can often be more complicated that building an online CRUD-style app.
Some applications have enjoyed success by moving from the desktop to the cloud, although in cut-down limited form (think word processing, spreadsheets, presentation software). And yes, there are visual design tools too (e.g. Figma). But a lot can't be done in the "cloud" and cloud apps offer only a subset of what a desktop app can do. (Sometimes a subset is all you need.)
Perhaps the future is more hybrid apps: desktop apps with some cloud capabilities such as online backup/saving/sharing. I can't imagine heavyweight vector, bitmap, video, or animation tools being anything other than desktop apps for the foreseeable future.
And don't forget that some cloud services offer desktop clients for connecting to their online services. That suggests that there's appetite and plenty of life left for the desktop. How many developers would give up their desktop text editor or IDE for a cloud-based one?
And finally a personal preference: between the choice of an online app (that is more than just a simple CRUD app) and a native desktop app, I would pick the desktop app every single time.