Can I use a single SSID with more than 500 wireless clients?

Cisco recommends using the least amount of SSIDs and I believe best practice is limiting ~254 hosts per vlan.

If an SSID can only be mapper/tagged to a single vlan, how could this be accomplished?

For example, if I forward all traffic to a wireless vlan and then route to other vlans as needed, wouldn’t the wireless vlan be overwhelmed with control traffic?

Thanks