On Ubuntu 26.04 LTS when you search for apps in App Center (by Canonical) you cannot tell for sure if an app is a snap package or a deb package. When you open app description the header lacks the info about package type, which is really a shame.
Sometimes I can find that info by carefully reading the app description below app screenshots (which can be quite long).
Is there any a solution for that not obvious to me?
Here is a screenshot showing header info for an app:
If both a deb version of the app is available in the Ubuntu official repositories, along with the snap version, you will get a choice when you search for the app.
Blender as an exampleWhen you search for Blender, the drop-down menu shows shap as well as the deb versions under specific headers (circled in blue below):
You will also see the option to show all results (circled in red). If you click Show All Results you will see:
Here you can filter the results by snap or deb packages.
If you pick the snap version of Blender you will see:
As you see, it says under Channel: Latest/Stable. This is a sure sign of a snap package. You will also note that the package size is 436 MB.
If you pick the deb version you will get a slightly different picture:
Note, there are no channel information and the package size is 163 MB.
I hope this helps