Lenovo has a database full of information about every machine they manufacture which goes back to at least 2020 if not before but also gets updated every time there's a new product released. It's called PSREF which is short for Product Specifications Reference and can be used to help you find the right machine when you are looking to buy one or look up details about one when the shop or website you are considering buying one does not have the full information available.
The website can be found at Product Specifications Reference(PSREF) (lenovo.com) but there are also apps available from Apple Store and Google Play so you can take it with you if shopping in a physical store.
How it works is you put in the model name of the laptop or if you have it the full model code for example 83G00007UK which is a Legion 9i would bring up this page Legion,Legion 9 16IRX9,Model:83G00007UK (lenovo.com) from which you can find every last detail about the laptop and any bundled accessories and software.
It also comes in handy when people are asking about different laptops on Discord they are considering buying but are not entirely sure what the hardware is in them. You can either refer them to that site or give them information directly from it.
Try it out for yourself and if you have any questions please ask below.