Tecno telephone products rebooting, how unusual is this?

I utilize a Tecno phone product specifically Camon C8. I've actually loved using this specific telephone product but I've come to see this specific behavior of rebooting at its wish without even showing up instructions requesting if I want to buy to reboot or not.

I find this very embarrassing, as I would maintain a middle of something and out of nowhere the telephone would just off and reboot, thereby trimming my brief from my job and making me personally start over.

Please I wish to know if anyone encounters such occurrence using their own phone?