Thank you solentsam. Yes just as I thought, Freedom dining before you sail on Arvia if you want to dine between 5-6pm, anything later then you need to chance it until onboard and book through the website you gave.
Our Azura cruise recently had this way of booking entertainment, however dining in mdr was booked in advance ie. 2nd sitting table of 6 at time of booking. It's unfortunate, for us anyway, as we know what time we like to dine and would rather have this put in place before we board so we can relax and not have to go online to book dining. Amazingly we have been able to book limelight club dining in advance as we were paying in advance! Albeit a smaller venue and they need to monitor the numbers I suppose. 🤔