Headcanons for Times the Shaw Pack Saw Gabe as Their Alpha
David: Every moment of every day, but he has a special memory of that time Gabe brought David to spend time with a pack member who had been struggling with chronic sickness and the depression/isolation that often accompanies it. The quiet leadership and care Gabe showed wasn't flashy or fierce, but it clearly made such a difference to that pack member. David noticed, and that's when he started to realize what a complex role "alpha" really was.
Asher: When he was a teenager, Asher once found himself in a very dangerous situation attending a party that got out of hand. There was some drinking, some rebellious behavior, and some people who didn't seem like they were going to take Asher's "no" as an answer. Thankfully, Asher had been able to call Gabe, who not only came to his rescue, but told Asher he was right to call and that he was glad Asher was safe. (Shoutout to @us3rnam3-r3dact3d for this idea!)
Milo: Gabe attended each and every one of Milo's gymnastics competition. As much as Marie wanted to be there, she did often have to work, which limited her attendance. Colm was in no shape to be there. It meant the world to Milo that he could look out into the crowd and see Gabe cheering him on and supporting him.
Darling: Gabe offered them a room to stay in whenever they needed, no questions asked. Once, Darling showed up at 3am to take Gabe up on his offer, presuming he'd not answer the door, turn them away, or demand to know why they were covered in blood spatter and badger fur. Instead, Gabe fetched clean sheets and a new toothbrush for them. Darling was speechless and grateful.
Sweetheart: After Sweetheart had a bad reaction to a blood donation, it was Gabe who dropped what he was doing to take them home and ensure they recovered. Sweetheart wasn't technically part of the pack at that point, but Gabe could see how happy they made Milo. He knew it was just a matter of time even before Sweetheart realized how serious things were going to get. Sweetheart was wildly embarrassed that they needed help, but Gabe provided help like it was his privilege to provide because, well, it was. (Find prior headcanons related to Shaw Pack blood donations here!)
Angel, Babe, and Sam don't have that direct connection with Gabe as the others have, but they can see remnants of Gabe in the protective actions their mates take, the kind words they speak, and the fond memories they share.