I take a different approach to seedlings that works well for me. I water the soil in the pot thoroughly before placing the seed, I plant the seed so that there is only 1/4 inch soil on top, then I leave it alone for 5-7 days until the soil dries out. No humidity domes, no wondering if there is enough water, no hovering several times a day spraying or sprinkling or screwing around with your plants. I know it’s fun to play with babies, but it’s not good for your seedlings.
By having moisture in the bottom of the pot the roots will search it out as the pot dries out from the top down. Not having moisture in the bottom of the pot and only watering a little, or spraying inside a humidity dome does not encourage vigorous root growth.