Definitely. In Witcher 3, side quests are not just extras. They can change the way the main story unfolds. There are side quests that lead to different outcomes in the main story depending on your choices during those side quests. This adds a lot of replayability to the game as you can explore different paths through the side quests and see how they affect the main narrative.
Yes. Side quests in Witcher 3 play an important role in influencing the main story. There are quests that can unlock new areas or information that is crucial for the main story progression. Also, the relationships Geralt builds during side quests can have consequences in the main story. For instance, if you gain the loyalty of a certain group in a side quest, it might help you in a main story battle or decision - making process. The side quests really blend well with the main story, making the game world feel more alive and the story more complex and engaging.