DT Swiss 545d rim and tire width

I wanted to buy this rim and then use it with tires up to 50mm

[https://www.dtswiss.com/en/components/rims-mtb/trekking/545d](https://www.dtswiss.com/en/components/rims-mtb/trekking/545d)

What is weird that this is classified as trekking rim but it only has inner rim width of 21 mm.

As per tire width charts, it still fine to use even 50mm tire on such narrow rims:

[https://www.wtb.com/pages/tire-rim-fit-chart](https://www.wtb.com/pages/tire-rim-fit-chart)

But is this ideal or should I look for another rim?

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by teanzg