That's definitely a cultural thing, and in the US it's generational as well. 50 years ago folks expected to work for a lifetime at the same company, and moving

That's definitely a cultural thing, and in the US it's generational as well. 50 years ago folks expected to work for a lifetime at the same company, and moving jobs was considered a big red flag. But today? It's more like a gig economy, where you work at a place long enough to finish a project, then reevaluate. As my buddy Bob says, each year his annual review/raise is an 'offer to stay'. He compares it with what he could get elsewhere, and moves if that's the right decision.