It's mostly 5G CA, at max it can do is aggregate N28 from one site or sector and N78 from another site or sector. They are marketing 5G CA as 5.5G. Technically we cannot aggregate same frequency twice. We can aggregate different range of frequencies only like one 100Mhz carrier and another 30Mhz carrier.
In motorola 5G modem for gigabit is only available rest of smartphones didn't have as it's for price cut or some brands think it didn't not very useful in India due to high population in surfing which cost network overloaded. thanks to motorola they didn't remove 5G gigabite modem with their low price but main problem their services and updates issue and every year with same design which isn't attract enough user base.