I also tend to check my email 2-3x per day while I’m out for my own sanity and will respond to important* ones if not doing so would hold something big* up. Not using OOO avoids some of the self-righteous nonsense from people with nothing better to do than try to micromanage my personal time.
Out of the Office but Reachable Message. Not every vacation you take is going to leave you completely unreachable. For those days when you’re out of the office but are still checking and responding to email or phone calls, make sure your message explicitly states that people will still be able to reach you, and how

An out-of-office message is an automatic email sent by an email account that is temporarily not being checked by its owner. Every new email to this account will trigger the out-of-office message, which is sent directly to the original email's sender. Most email service providers allow you to activate this option and customize your message.
My new job provided a template OOO as part of the onboarding brand templates package! I’m sure it might seem like overkill to some, but I’ve had tons of nervous first-job employees ask me what theirs should say, so I loved that they just gave a sample to go from. Also goes a long way in communicating that unique office culture stuff that is usually unspoken/not formalized.