Does anyone know a way of buying an NFT directly from your balance without connecting a wallet to your account?
Why not just use a dummy wallet for a one-time transaction?
The NFTs are available on OpenSea and already credible for the marketplace. If you worrie connecting your main wallet to any service platform, just send the fund to dummy wallet address and use those wallet for connecting & purchase the asset.
Once success, send the asset to your main wallet.