I'm currently using T480. Thinking of upgrading to a second hand new-ish model.

Initially I was interested in ThinkPad L14 gen 2 or gen 3, but I've read that the wifi card is not upgradeable. I also read that newer models block installing SSD into the WWAN slot. I prefer having separate SSD for installing secondary OS.

Any recommendations of newer models with dual SODIMM slots, upgradeable wifi card, ability to add SSD to WWAN slot?

Thank you.