The specs that have been posted re the teracube 2e do not indicate whether Gorilla glass is used and if so, what number. If Gorilla glass is not used, what alternative is and how does it compare to Gorilla glass. Secondly, what capacity of charger would you recommend for the quickest battery charging. I have a variety of chargers which came with phones and tablets.
Teracube 2e comes with a standard tempered glass display (and not Gorilla Glass). It will also have a (plastic) screen protector pre-installed.
Regarding charging, any USB-C charger rated equal to or higher than 5V/2A (10W) should be able to charge the phone. Chargers included with Mediatek devices have the best chance of providing the highest 2A charge.