If you look at the total coin market capitalisation (TOTAL), which is the highest priority, it has been decreasing steadily over the past week, reaching the level of the market capitalisation in 24 February.
In the meantime, the Bitcoin dominance is going upwards, but even if the dominance has increased, the price has decreased because the total coin market capitalisation has become smaller.
The situation of ether dominance and alt dominance is not good. The ether dominance is steadily declining, and the alt dominance is steadily declining and then rebounding sharply, but they are both in a downward trend.
In conclusion, the dominant sector in the coin market is still Bitcoin, and when the funds locked up in the Bitcoin sector (+stablecoins somewhere) flow into Ether and alt sectors, that's when the alt season will arrive.