This is a tricky one.
If you've got a good product built before release (what I mean is getting enough user feedback, optimizations in place, and features that are needed now), then sales-led growth should be the strategy. It'll be easy as your product will adhere and align to present user needs.
If you believe in being out there first, then product-led growth should be the strategy. You can't offer competitiveness or a USP if your product doesn't provide what the competitors already are. Moreover, in this way, you'll be able to build a user base with some great peeps who'll support your growth. Post your product aligns, and shift to the other strategy.
These are just two cases. In case, there are some other scenarios, the strategy changes, might even add different things.
At an early stage , sales led growth seems to be the most viable option since you get first hand understanding of your icp and the problem statements but after a certain scale i think product led growth is the holygrail for billion dollar companies.