IMO the fines are made to sound scary, and are relevant for large corpos, but the ICO or whatever body for your country, has no interest in prosecuting an individual. What is a ‘percentage of revenue’ on something that makes no revenue anyway.
Even if they did take interest it would start with an opportunity to correct things before prosecution.
There are two tiers of side quests in cyberpunk. Gigs and full on side quests. The gigs are all pretty short ‘go to place, shoot / rescue someone’ stuff but the main side quests are generally more involved, including all the romance options etc.
The gigs can be skipped without missing much, but skipping the side quests misses a ton of story IMO.