I went with tools. Settings & their lore are useful to me as both gym & player for the purpose of getting everyone at the table onto at least adjacent pages when it comes to building for & exploring within the shared fiction of the world being fun by the GM. Lore without the mechanical tools to do the lifting needed to support that setting is a waste though.
Even though the why behind my answer is effectively both, I went with tools because the balance between those two has been set so incredibly skewed that gm tools is underserved to the point that it seems like the need for mechanical GM tools has been unreasonably relegated to the level of a vestigial waste by someone someone with decision making power at wotc. From looking at the results at around 18/36/45% and reading all 7 pages so far I don't think any of this is a particularly outlandish take.
Even though the why behind my answer is effectively both, I went with tools because the balance between those two has been set so incredibly skewed that gm tools is underserved to the point that it seems like the need for mechanical GM tools has been unreasonably relegated to the level of a vestigial waste by someone someone with decision making power at wotc. From looking at the results at around 18/36/45% and reading all 7 pages so far I don't think any of this is a particularly outlandish take.







