I'm afraid it looks like LG have dropped support for Freeview Play this year which means catchup apps like ITVx, 4OD or Channel 5 arent available. This isnt made clear on product pages and not covered well in reviews given how important it is. They've also dropped DTS support this year too.
Other brands have adopted Freely to provide catchup and live TV into the future but not LG.
Something similar happened to 2020 CX models and it was many months before some of those apps were made available then.
Assuming this also affects C5 and B5 this will become more and more talked about until we're able to get LG to sort it out.