Are you sure the laptop actually shuts down? I mean, do you have to push the power button and go through the start-up process each time?
My guess is that either the screen goes black or the laptop goes into sleep-mode, maybe both. In those cases, you normally only have to tap a random key, or swipe across the touch-pad and the laptop should open and display your last session.
If this is the case you can check the Power Management settings. A new laptop will by default be set to very aggressive power conservation, especially when on battery-only.
Does your ASUS run Endless OS or Windows 10?
If you're running Windows 10:
Open the Settings app and select System. On the menu to the left click Power & sleep. This page allows you to change how the laptop acts when plugged in and when on battery.
For example: You can set the screen to turn off after 1 hour on battery and 2 hours when plugged in. You have similar options for Sleep mode.
If you're running Endless OS:
There are tons of compatibility issues, e.g. with Adobe PhotoShop. As it is now, PhotoShop will not run on a Linux-based OS like Endless OS. This means you have to find alternative photo-editing software. Being essentially a Linux OS, Endless OS has the benefit of being free, unlike Windows, which means ASUS can lower the price on the laptop.
There's also this ASUS app that helps with battery health:
https
/www.asus.com/support/FAQ/1034263
Finally, it could also be the battery about to malfunction, in which case you can try this calibration process from ASUS's support page:
https
/www.asus.com/support/FAQ/1032745
At worst, you may have to send the laptop to a certified ASUS repair shop using an RMA form. Go to this page:
https

/www.asus.com/Laptops/ASUS-VivoBook-Max-X441UA/HelpDesk_Warranty/
... and click 'Find service locations'. Then pick your country and read the instructions carefully. Prepare yourself for a lengthy and cumbersome procedure.
Best of luck,
GreyCatz.