Lip at linear drain.

This lip is located about 6-8" from the shower's bathroom entry door. To prevent water from sneaking along the edge the drain was installed before the wall tile and brought right to the back wall. Then the tile notched into the drain base. The Schluter profile is set higher than the drain and works well at blocking water from sneaking out. The linear strainer works well bring the water flow into the drain. Other drain styles can offer up a little room for water to skirt over them.

Bit of a trench drain version of a linear drain?

Looks like this is an infinity drain. Did you have to modify the top grate's length to accommodate the wall tile entrance into the end of the drain channel? Otherwise I guess you could just install a shorter drain and angle the end tiles as you would any other mid-floor linear drain.