Hello! We are excited to announce Steam Families, available today in the Steam Beta Client. Steam Families is a collection of new and existing family-related features. It replaces both Steam Family Sharing and Steam Family View, giving you a single location to manage which games your family can acce...
Valve announced a replacement feature for both Family Sharing and Family View. Currently in beta.
Features:
up to 5 members
game sharing
parental controls
allow access to appropriate games
restrict access to the Steam Store, Community or Friends Chat
set playtime limits (hourly/daily)
view playtime reports
approve or deny requests from child accounts for additional playtime or feature access (temporary or permanent)
recover a child's account if they lost their password
Also, 2 weeks ago Last Epoch disabled family account sharing because it was being abused for real money trading:
We have unfortunately had to disable family sharing on Steam for Last Epoch.
This feature enabled the use of significant RMT (Real Money Trading) and Botting options, and was removing our ability to ban/remove accounts, faster than they could share them with their entire networks.
I don't think any one specific thing is responsible for this change, but the 5 account limit seems like it would certainily be a welcome change for the Last Epoch devs.