> A plugin that sets each "the" to red clearly conflicts with a plugin that sets each "the" to blue: at most one of them can "win", so which is it? Does it depend on which plugin was loaded first? If so, that's no better than LaTeX, and will become an ever-growing headache as the ecosystem grows.
Just loading a package in Typst won't perform side-effects. Instead what they can do is giving you some function that will apply the styling to any content passed to it. It will be up to you to choose to wrap your whole document in such functions in order have them apply globally, which can be done conveniently with something like `#show: foo_template`, where `foo_template` is the aforementioned function.
This still has a chance of "incompatibility", like in the blue/red example, because you might do this with two functions from two different plugins. However it is up to you to do this, and it will hopefully be clear that you're modifying global styles in two different ways with a specific order between them.
To be fair though I should mention that some packages will expect you to use `#show` with their functions, so sometimes it will be difficult to avoid using it multiple times.
Just loading a package in Typst won't perform side-effects. Instead what they can do is giving you some function that will apply the styling to any content passed to it. It will be up to you to choose to wrap your whole document in such functions in order have them apply globally, which can be done conveniently with something like `#show: foo_template`, where `foo_template` is the aforementioned function.
This still has a chance of "incompatibility", like in the blue/red example, because you might do this with two functions from two different plugins. However it is up to you to do this, and it will hopefully be clear that you're modifying global styles in two different ways with a specific order between them.
To be fair though I should mention that some packages will expect you to use `#show` with their functions, so sometimes it will be difficult to avoid using it multiple times.