Negative triangularity (NT) is a promising edge-localized mode-free candidate for future fusion reactors. In this paper, the impact of increased divertor closure on density-ramp induced detachment in NT is assessed in the Tokamak á configuration variable (TCV). Previous experiments in TCV have shown that at similar line-averaged density and divertor shape, NT shaping makes detachment access in L-mode more difficult than in positive triangularity (PT) and results in a lower divertor neutral pressure. In this paper we show that increasing the divertor neutral pressure in NT with the help of TCV’s divertor gas baffles cools the outer target and the outer leg compared to unbaffled discharges. However, baffled NT discharges, at a divertor neutral pressure comparable to unbaffled PT, at similar separatrix density and similar divertor geometry, still show higher target electron temperature and no ion flux rollover, suggesting lower level of divertor detachment. Langmuir probe measurements within the divertor volume, using a reciprocating divertor probe array, show that the scrape-off layer broadening along the outer leg, typical in PT configurations, is not observed in NT, indicating a lower level of divertor cross-field transport. For the divertor geometry used in this study, it is further found that having the ion -drift oriented from the core towards the -point is beneficial for outer target cooling and detachment onset, contrary to the general picture of particle redistribution via divertor drifts. However, even in this case, in NT, no ion flux rollover at the target and only partial cooling of the divertor volume are obtained. When core density is further increased, a collapse in separatrix density is observed.