The Business version is $10/mo more. Gets you allowed to serve services from the line (home technically you're not allowed to have servers and such). That looks like about it.
Crazy that T-Mobile's home internet packages might perform better than Spectrum's for me. Well, my neighbor just got it, $50/mo "for life", no cap, getting ~600Mbps down. Latency is 10-30ms worse. (20-40ms)