The command is e.g.
sudo apt install linux-image-6.14.0-27-generic linux-headers-6.14.0-27-generic linux-modules-6.14.0-27-generic linux-modules-extra-6.14.0-27-generic
Then reboot and at Advanced options for Zorin select the 6.14 kernel to boot from and test the wifi. If it is better you can set this kernel as default to boot. Or alternatively, try the 6.8 or 6.12 kernel.
You could also test if it helps to disable bluetooth, maybe there are interferences. Or try to set the power profile to balanced or performance (if available) to see if it makes a difference.
Also disable wifi powersaving
sudo nano /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
and set there
wifi.powersave = 2
instead of wifi.powersave = 3.
Press ctrl+o, then enter to confirm, and then ctrl+x.
sudo systemctl restart NetworkManager
If you have a Dualboot with Windows disable fast startup at Windows power options and fast boot in your BIOS.