It's true that Historic Environment Scotland is combining the content of various web sites into a new one
https://www.trove.scot/The good thing is that the information currently on Canmore etc is not just going to disappear. It will still be there, but in a new format.
Unfortunately it's also true that trove.scot appears to be difficult, awkward and unwieldy to use. I have been looking at it for the last few days, and I am not at all impressed. It seems that the useful and interesting stuff requires a lot of drilling down, and linking to the URLs (if you can find them) appears to be unstable.
The search on the main page https://www.trove.scot/ does not appear to do anything. However if you click on Explore, then Explore Places, then Search by Keyword, you get a search screen that does work.It is now working. No idea why it wasn't before, or whether it will continue to work now.
I put in Kenmure, and it produces 160 results. That compares with results for 24 sites if you input Kenmure into the main page search screen at Canmore. Fortunately Kenmure Castle is the first of the 160 results, and clicking on that produces a record of Kenmure Castle with some images and a map.
However to get to the useful information and description you have to click on the tab named 'Activities' (??Activities??) which then opens the descriptions that are currently on Canmore. How on earth are you supposed to know that 'Activities' means 'Descriptions'?
The cards you mention are under 'Related Archives' and there is a tab for 'Nearby Places and Designations' of which I have yet to grasp the point or purpose.
There's a page
https://www.historicenvironment.scot/about-us/news/retiral-of-hes-web-services/ describing what is going on.
I think the one that is going to be the most awkward to deal with is the withdrawal of Scotland's Places because the information there is going to be split among three different web sites instead of all being conveniently in one place.
