It is not wise to install every font there is. This slows down the system, your workflow etc.
For different projects and applications I need a certain number of fonts available. These are numbered significantly above the core fonts needed to run the operating system. That number is still manageable by hand.
But when using for example a web browser I want to restrict the number of fonts available from the system to them severely.
Examples: I need Arial available to me and my word processors. I do not want to see it on web pages. Browser fingerprinting is also affected by the fonts installed (as seen through the browser). Using Writer I want to have the full set available, using image editors they should be almost font agnostic. But web browsers being the main concern here.
I am aiming for something like at least two profiles for two kinds of programs running under the same user: 1. full set available 2. sandboxed/restricted set.
How to force programs into seeing just a very small and clearly defined subset of installed fonts otherwise available to the system or the current user?