I have the same network card, lenovo ideapad 330-15arr.
This work, tested
https://askubuntu.com/questions/990378/wi-fi-not-working-on-lenovo-thinkpad-e570-realtek-rtl8821ce.
Only problem is: you do not have make and the necessary dependencies out of the bat so first you need to connect to the internet by other means (I
I used my phone's USB tethering then:
sudo apt update
sudo apt upgrade
sudo install make
, do sudo apt update ; sudo apt upgrade; sudo install make;
andand after that you do inside 8821ce8821ce
folder:
make all
make install
modprobe -a 8821ce
make all
make install
modprobe -a 8821ce