I installed the new elementary OS on my Lenovo laptop. Network settings only shows wired network.
You have to find out what your wireless adapter is and then get those drivers installed. There are some good guides around for Broadcom e.g., https://www.thetestspecimen.com/posts/broadcom-bluetooth-fedora/
Maybe this helps as well, at least for me standard procedure without installing Kernel headers first did not work: https://elementaryos.stackexchange.com/a/28315/26554