You can start from the chapter where the anime ended. Usually, there are online forums or manga communities that can give you the exact chapter number.
The Solo Leveling anime sticks closely to the manga. But there are instances where the anime might condense or expand certain events to create a more engaging viewing experience. The key plot points and character developments remain largely unchanged, though.
The 'Solo Leveling' ch adaptation of the manga is mostly accurate. It keeps the main plot and character developments intact, with only minor tweaks for the medium's requirements.