A good middle ground is to have a large PR open for reference, and then split sections of it out into separate PRs. This way you get nice reviewable chunks while also having the broader context.
This is similar to stacked PRs except that it's much easier to tweak things as you split them out without rebase shenanigans although of course if you tweak too much it kind of defeats the point of the whole thing.
A nice thing about this is that you can put the large PR up while it's still very draft for conceptual review (socialisatuon etc etc) while you work on splitting out and polishing parts of it.
This is similar to stacked PRs except that it's much easier to tweak things as you split them out without rebase shenanigans although of course if you tweak too much it kind of defeats the point of the whole thing.
A nice thing about this is that you can put the large PR up while it's still very draft for conceptual review (socialisatuon etc etc) while you work on splitting out and polishing parts of it.