If “in line with my tastes” means what I think it means, just wait until you get a load of Christopher Judge’s Teal’c. Especially in later seasons.
The first few seasons of SG-1 do feel darker (figuratively and literally). Atlantis had the advantage of taking what the main series learned along the way and employing it from the get go. The best thing about them, I feel, is how they aired concurrently and had multiple crossover moments (imagine if Picard’s Enterprise regularly checked in with DS9). So you might want to find a guide online to know what order to watch the episodes of both series in, if you care about chronology.