If not mistaken the other variant of 888 is using Qualcomm X62 modem.

5G CPE that using Qualcomm X65 or X70 modem very hard to find (may be too expansive and not exists yet)

I also noticed from forum Qualcomm X55 modem had issue, what issue I not sure, may be too hot ?

any portable 5G mifi recommended for umobile uhome? Around 700-ish if possible ..

saw few good price olax 5G portable, but kinda suspicious on the battery if it's good enough