Hey there, I did get one. I bought the OEM “base carrier bars“ from my local VW service center (Part Number: 5G4071126) and these j-cradles to hold 2 kayaks: https://www.amazon.com/gp/aw/d/B00873J0YY?psc=1&ref=ppx_pop_mob_b_asin_title
Also had to buy some cam straps because the ones that came with the j cradle were not very high quality
I've had no issues with my setup:
https://www.amazon.com/gp/aw/d/B07BL264KL?psc=1&ref=ppx_pop_mob_b_asin_title
And
https://www.amazon.com/gp/aw/d/B00873J0YY?psc=1&ref=ppx_pop_mob_b_asin_title
I've got budget crossbars and budget j-racks from amazon. The crossbars are CargoLoc, and they have a decent set of reviews on Amazon. They fit nicely. I'm not sure I 100% trust the locking mechanism that clamps the bars to the rails, so I tie them off to the roof rails to be sure. The bars themselves are extruded aluminum and are fine. If you tie a loop of good rope around the rails as a backup, well, that's not that different from the plastic strap that holds expensive Timberline towers onto the rails. The kayak racks are kayak racks. They're just metal bars and some bolts and plates that hold the racks to the crossbars. The ones I got are budget, but they also have very good reviews from users. They're functionally identical to more expensive racks.
I know some will disagree, and I probably would, too, if I used them more regularly. The CargoLocs certainly are not pretty.
Bars: https://www.amazon.com/gp/product/B00GA2HKAU Racks: https://www.amazon.com/gp/product/B00873J0YY
Lots of Crosstreks in the crossbar reviews.