Dual boot vs replacing chromeOS - I have my viva next wednesday

Hello guys, I have been using chromebook for web dev ( cannot upgrade rn ) - it has 4gb ram and crostini debian. But it’s been crashing often which makes sense cuz I am running flask server, sqlite3 server, vscode while also using gmeet on chrome os chrome web during a project viva. I have another viva next Wednesday and I realised I can’t manage with this setup

A friend suggested dual booting or replacing chrome OS with linux deb, I am comfortable with installing packages, opening code and other basic terminal stuff and have been doing it for the past year. But I am not sure of how native will feel and whether I can adapt comfortably to new setup in a short time since I have like 3 days before my viva

I am not sure if my system can reboot too, attaching it’s spec below, ASUS flip c214MA and HWID is AMPTON if that matters

Please suggest me which is better, since I am totally noob to hardware and these kinds of stuff

The main priority is making sure I have access to chrome and also that my system doesn’t crash during viva next Wednesday

Thank you so much

Edit: Also yeah if I am to use debian right now since it’s the one I am most comfortable with, will I be able to switch to ubuntu later??