RHEL 10 announced that RDP would be the preferred alternative to VNC. Red Hat replaced Spice with VNC in Red Hat 8 due to licensing issues with h.246. VNC is under featured and basic compared to both alternatives. Spice uses proprietary h.246 which caused disputes with licenses. RDP is proprietary to microsoft but has a few foss implementations.
My biggest gripe with vnc clients is 8 character maximum password lengths for the default protocol. Straight up crazy.