IP is still a super valuable info, even as it changes every so often.
You'll see strangely repetitive user coming from different AWS's IP blocks. User showing constant sessions from 5 or 6 IP blocks that seem to belong to different countries. Or users having a pretty consitent IP but asks for help right after a new login happened on a different IP.
It can be replaced with other info, but it's still a simple and pretty powerful bit to know about your users.
You'll see strangely repetitive user coming from different AWS's IP blocks. User showing constant sessions from 5 or 6 IP blocks that seem to belong to different countries. Or users having a pretty consitent IP but asks for help right after a new login happened on a different IP.
It can be replaced with other info, but it's still a simple and pretty powerful bit to know about your users.