You can also find all kinds of accessories for robot hoovers of any brand

On fruugo.com
Of course, it comes from China

But it's worth it
For around forty francs
You've got 10 or 20 hoover bags What's left are accessories with brushes
Mops and filters


And it's frankly a lot cheaper, just take a look

Yes
Approx. CHF 40

According to the title, these vacuum cleaner bags should fit.
But I haven't tried it myself yet.

Roboparts dust bag for Dreame L10s Pro Ultra Heat / L10s Plus / X40 Ultra robot hoover (6 pieces)

These dust bags are from Roboparts and not from Dreame itself.