Magenta 1.0 vs Magenta Max in busy locations

I searched around and couldn't quite find the answer I'm looking for, and am generally looking for anecdotal experiences.

I find myself in airports quite a bit. T-Mobile can be hit or miss, sometimes on a minute by minute basis. I also carry a US Mobile VZW line just in case (and also for the hotspot). It's come in handy a few times, but I barely use it.

My question is would Magenta Max improve my speeds in areas that may already be congested, compared to Magenta 1.0? I use less than 10GB per month, so I don't think I've ever been deprioritized. But I would be willing to pay for Magenta Max if it allows me to beat the congestion.

A lot of my T-Mobile issues in airports come from complete data stalls, like working fine one minute, to taking 60 seconds to send a WhatsApp text.

Thanks.