They seem to have totally mixed up their plans now.
Yes, the plans change every 6 months (or more often). Just like the fashion industry.
It appears that there isn't an "unlimited" 4G only plan now. Looks like the only "unlimited" one is a 5G one at £33.30 a month ?
Yes, like all the mobile operators the upsell is constant. They are all spending a few £bn so need high levels of regular income. Hence the push to more expensive 5G unlimited, than cheaper 4G unlimited.
For reasons I can't fathom, their 10GB 4G plan is currently listed at £10/month, making it cheaper than both their 3GB and 1GB plans. Mobile providers and their pricing makes my head hurt.
Deliberately to confuse. On paper bills for landlines that appeared to be BT plc policy in years past, no reason for EE to be any different, same company.
My EE 4G "unlimited" plan that started in July 2020 is definitely not limited to 60Mbps, I regularly get over 80Mbps.
My EE 5G plan from June 2020 has 100GB of data, but is also not limited. I now get 110 Mbps in my front room, but before Christmas was much slower, as more capacity has now been added to my local mast. (changes visible in Cellmapper).
To add to the confusion, my £34/month plan is labelled on my account as "4G SIM Unlimited Plan £25". Did I mention mobile pricing confuses me...
Billing system never catches up to the sales/marketing !
21 years of broadband connectivity since 1999 trial - Live BQM