One of the reasons that there is no baggage allowance shown is that, a day or two before the flight, you will be emailed to be told that you can check in your baggage for free due to COVID. I don't believe that this entitles you to 2 checked bags...

There is also no mention of priority boarding, because that has been suspended during COVID. Strictly back to front boarding with J last.

My last flight on IB also gave no apparent recognition of my BA Silver status. However I was free to choose an exit row seat as always. If you've been able to do the same then your status is actually being recognised...