No. The main Star Wars movies can be understood without watching Solo. The story of Solo is more of a side adventure for Han Solo and doesn't directly tie into the main plotlines of the other movies in a crucial way.
Well, it depends. If you really want to know every little detail about Han Solo's character, then it might be helpful. But overall, the other movies do a good job of standing on their own without the knowledge from Solo. There are only a few minor references here and there that you might miss, but it won't be a big deal for understanding the main story.
Chapter 144, "Self-serving at the Expense of Others, He Meng's Furious Rage [Sorry for Being Late]", is the clearest early answer because it turns Cold Beasts's situation into a concrete plot event. It opens with Those bastards dare to ambush me!" Under the big tree, He Meng's face... and closes on Evidently, they were both expressing their claim to the torches'....
Chapter 161, "Who Told You the Stove Needs to be Lit by Someone?", is the clearest early answer because it turns Luo Yuan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with At this moment, the Cold Beast that had just stalled rushed toward... and follows through with Over ten thousand torches were used, nearly depleting half of the....
Chapter 162, "Once and for All, Victory", is the clearest early answer because it turns Luo Yuan's situation into a concrete plot event. The chapter turns that into something concrete by moving from The Iron Refining Furnace, a building in the system, could always be... to The target, of course, was their eyes.. What makes it stick is that the danger stops being abstract and the conflict around Luo Yuan becomes immediate, forcing the surrounding cast to react under pressure.
Chapter 116, "Great Righteousness, Hunting Flood Dragons, Saliva [Five-in-One Mega Chapter]", is the clearest early answer because it turns Teng Jiao's situation into a concrete plot event. Early on, Their preparation was exceedingly thorough; they followed Xia Hong's.... By the end, Amidst dealing with so many attacks, Teng Jiao's sweeping strike....
Chapter 160, "Night Falls, It Has Arrived", is the clearest early answer because it turns Lin Wan's situation into a concrete plot event. The setup is A Frost Wolf's limbs were entangled by white silk threads, its body..., but the pressure keeps building through A large knife suddenly slashed from the side, and the Frost Wolf's....
Chapter 526, "Leaving The Ruins", is the clearest early answer because it turns Damien's situation into a concrete plot event. The setup is The thunder of their clash had ended, but the scars it left behind..., but the pressure keeps building through Half the clearing had collapsed inward from repeated impacts..
Chapter 106, "Expand the Hunting Grounds, Camp Expansion [3-in-1]", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Xia Hong maintained a calm expression and nodded. and follows through with If not for Xia Chuan having the Wood Puppet Black Blade, leaving him....
Chapter 197, "Cloud Jiao Advances, Beast Blood Consumption 3", is the clearest early answer because Luo Yuan finally turns buildup into a real advancement. It opens with That is to say, even if he comes to meet this target, it would take... and closes on To send them hunting right away is too risky, it's better to let them.... The key payoff is that it turns Luo Yuan's growth into a concrete upgrade step and sets up the next payoff in the power growth storyline linked to Qiu Peng.
Chapter 76, "Everyone Can Cultivate", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Brother, what do you think of my proposal?" Xia Hong, who was... to Xia Hong was not blaming these people..
Chapter 143, "Getting a Bargain and Being Malicious [Triple-Length Chapter]", is the clearest early answer because it turns Great Xia's situation into a concrete plot event. The chapter turns that into something concrete by moving from First Year of the Great Xia, February 22nd Second floor of the wooden... to In the last half-month, the Hunting Team has brought back three....