I see the bathroom has a flush in a water closet with a door as opposed the flush being in the same room as your bathing area and sink. I wish American houses would do this more, it’s just more hygienic
Everyone just needs to make it a habit to close the lid before flushing.
And for those public toilets with auto-flush and no lid, I get around it by draping TP over the sensor while I do my business, flush it manually when I'm done and the door is open so I can quickly jump outside the stall.
I close the lid before flushing so the mist doesn’t spray around, and then I clean the seat with my hand bidet water but I always feel like that’s not enough. Maybe I am being a germaphobe haha. Eh it’s not a big deal