Yeah, probably being humble about your crypto and not talking too much related to it will be more than enough to avoid any kind of wrench attacks.
Actually, it’s the same way as with fiat money, you don’t talk much about your bank accounts, do you? And with all due respect, I don’t think OP has whale amount of crypto.
Not sure why people in crypto tend to make things more complicated. Crypto is already not the easiest and most intuitive thing and adding more complexity to it won’t do any better.
Then why don’t you use a hot wallet? Hardware wallet is not the best thing for traveling. Just move some crypto to your hot wallet and travel with peace of mind.
You don’t take all your bank accounts on a trip with you, right? Usually it’s some cash or credit card but not your life-savings. Despite hardware wallets being called “wallets” they are more of your self-custodial “bank”. And hot wallets on you mobile phone are classical wallets that you carry around.
I think some hot wallets have this “dummy” wallet feature. Can’t remember which ones but I definitely saw it.