On Polymarket, what are the most reliable methods to fund and withdraw without exorbitant fees?

Been diving deeper into Polymarket and generally liking the experience, but the friction point for me, and I imagine for many, is the funding and withdrawal process. Specifically, I'm finding that moving stablecoins (USDC) onto the platform and then off after a successful market resolution can be quite costly.

What are others doing to minimize gas fees and slippage, especially on withdrawals? I've experimented with various bridges and direct deposits, but it feels like there's always a hidden layer of cost that eats into profits on smaller plays. Is there a preferred network or a specific type of wallet integration that offers a more streamlined, cost-effective transfer for regular trading? I'm trying to avoid constantly paying 10-20 bps just to get funds in and out.