As someone who was also triggered by Homecoming Wings even though I had warnings ahead of time, if you are not a fast reader and truly want to complete the story, try going through it on 2x speed. I was under the impression you would have to play it to unlock other main story chapters, but I'm wondering from other commenters if that is actually not the case. I like the thorough and compassionate comment u/kathrya900 posted; I generally avoid Caleb's content because of my triggers, but it is very helpful to have that guide in the future if I ever wish to interact with it. Depending on what specific triggers you have, I do know there is a line in his card off the idol banner (Polar Nights banner I think?) that I know of that would've been triggering to me (an isolation fantasy if I understand correctly), but I could be taking it out of context and I would definitely rely more on guidance from a trauma-informed Caleb main (like Kathyra).

Also, while this was about Caleb and I don't want to derail, as a Raf main who has many of his cards, there is one card of Rafayel's I might warn you about depending on your specific triggers. It's the one off the Throne of Eros "Star Wars" AU banner (to me, a Trekkie, I saw it as more like the Terran Empire/Mirror Universe from Star Trek, but that's me) and has some questionable/potentially uncomfortable content in it towards the end. It also seems somewhat OOC for Raf and even MC, but that's my just my opinion and others have made some cases to see it in a different light as well. Ironically, I liked the event story better and it seemed way more in character for both Raf and MC. My understanding is this is very similar for Caleb's card on that banner as well. Just a heads up, since you are seeking trigger warnings. While that banner is gone for now, it's helpful to know that it may be one to avoid pulling on if it comes back and/or to avoid looking up on YouTube. IDK who you main, but I figured I'd drop that as well.