The M4 Pro Mac Mini can deal with up to a few 6K-resolution screens at 60Hz more than Thunderbolt and HDMI. Alternately, for your two-display configuration, it can perform a single 6K 60Hz monitor more than Thunderbolt and either an 8K 60Hz or 4K 240Hz monitor in excess of Thunderbolt or HDMI.macOS Monterey is engineered to unleash the power of M1