The trick is letting go of the idea that everyone needs to be there at the same time. People are getting creative with async celebrations now - like someone sends a care package a week before, someone else does a video call just with the birthday person (way less awkward than a group Zoom), and others might send a playlist, a funny video message, or just a genuine text when they remember. The pressure to coordinate everyone simultaneously is what makes it feel forced.
Some groups have shifted to doing smaller, rotating celebrations. Maybe three people who can actually meet up grab drinks, while others celebrate separately and share photos. Or you do a longer, casual group chat celebration that spans a few days instead of trying to jam it all into one evening. I've seen friends do "birthday weeks" where they just text memes and well-wishes whenever, and honestly it feels more genuine than a rushed video call where half the people are distracted anyway.
If you want something more intentional without the coordination nightmare, async games work great. There are board games and online games built for turn-based play where you can each take your turn whenever you're free, so it's still collaborative but no one's stressed about timing. Or just pick one person to do a proper one-on-one call with on the actual day, and let the rest of the celebration be low-pressure stuff throughout the week. The people who care will show up in whatever way actually works for them.