I have not seen a hair catcher for a linear drain, but that's a great idea.

Doesn't the drain cover serve that function?

Not Really, bricken -- Here I've put in the drain cover so you can see it -- at least a section of it. The blue is a protective film, after the plumbers leave tomorrow, I'll pull it off and the stainless steel will show.

Unlike most drain covers, there are no holes in this -- instead, there is a gap all around where the water flows through. I'd say the gap is a full 3/8" on each side, and it's 43" long, with no interruptions in the gap. That's not going to stop my hair!

Thanks for your interest!

Wow- that's a concern. I'd contact them for an explanation.

OrangeCamera -- Thank you! I had tried to find something online, and struck out. If I can't find something made for the purpose, I will see if I can get one like your photo that is the right dimension.

I spoke with the regional distributor for both wedi and schluter -- she has never seen a hair catcher for a floor drain. She says they are designed so everything flows down and out, and considers it an advantage that there is no hair trap to clean. She has long, curly, hair, has had one for two years, and has not had any problems.
I'm still considering finding something to put in there, so if anyone has more experience, please chime in!

I have heard no need, water flow flushes it down.

I use primarily Schluter drains myself and there is nothing to stop hair from going down the drain. The drains are pretty big which allows a large volume of water to flow down the drain which in my helps.

Thank you, everyone, for jumping in to ease my mind. What I have learned in the 18 months I've been living with this drain, is that the bolts that hold adjustable rests for the drain cover also do the job of catching hair. Maybe once a month, I lift the drain cover and pull out the hairs that have caught on those bolts. Each time, there has been more hair caught there. So while I'm sure those bolts don't catch every strand, it's probably enough to keep the hair from building up down further in drain.
And, of course, I've also learned that I LOVE living with a curbless shower!

I've also learned that I do not need a glass partition or even a shower curtain. After being told that I could live with it for a while to test it out before deciding, I decided to wait. And now that I have 18 months with no problems from water getting where it shouldn't, I'm sold. What was once a dark, crowded bathroom is now light, airy, and open.
(OK, I didn't "discover" this -- I'd seen it done in other countries -- maybe I just needed to be sure water behaves the same in the US as it does in the rest of the world. )

how is the Wedi floor after couple of years? I heard after using the Wedi shower with heavy weight person walking or in wheelchair, for 3-4 years, the black cover on the blue foam come off and causing tiles pops off. Any idea?

My shower floor is still in great shape -- the tile over the Wedi looks and feels just like it does on the rest of the bathroom floor. All of it is on a base of concrete, so that may help. However, I'm not heavy and don't use a wheelchair, and it's not quite 3 years yet, so maybe not a good test for your scenario. But honestly, it all looks like new.

it is nice to hear. you may have not any problem till it's warranty 10 years due.

Noble Company's FreeStyle Linear Drain has a pre-strainer which will help stop some unwanted residue from going down your plumbing. This premium drain has many other features including a flat bottom with internal slope to drain, that make it worth checking out.

FreeStyle Linear Drains on Houzz

FreeStyle Linear Drains