I use Bisq and Robosats exclusively to accumulate bitcoin via fiat selling. I've been leaning more towards Robosats lately though, because on the high on chain fees (Bisq doesn't support lightning). I'm in Canada, and the CAD liquidity is horrible compared to USD and EUR; it's pretty clear from the currency breakdown in your post. I typically make a buy when I see an offer within 3% above market. Or if I really want to get some sats, I would post an offer to buy.