You talking Wifi6 vs Wifi6E?about $100 difference in cost, but I think it'd be worth it to just get the 6+. I've got WAY TOO many IoT devices, plus 2 phones, 3 iPads, 3 Roku devices, 3 PCs, Doorbell Cam, Security Cam, etc. etc.
Main advantage is the 6 GHz band; if you do not have devices that can use this band, then the differences may be marginal at this point.
6E and 7 both support the 6GHz band, but Wifi7 will probably be a significant jump in capability.