Recommendation: set Bump=1, and then adjust up or down.
Decorative glass https://3dsky.org/collection/shared/5511249 

Set of glass partitions in a frame.
The relief is set with seamless normal bump maps; you can decrease or increase the texture depth.
Size can be adjusted with tiling and mapping.
The opacity and tint of the glass can be adjusted in the volumetric scattering section.
Patterned glass, relief glass, textured glass, smoky, fluted, tinted glass, glass partition, glass panels.
The size of the glass in full scale is 1300x3000 mm.

https://ademglass.ru/katalog/steklo/riflenoe-i-uzorchatoe/uzorchatoe-steklo/ 

Use as: glass partitions, glass panels, kitchen fronts, wardrobe fronts, closet front, zoning, shower partition, shower, glass curtain for bathroom/bathtub, glazing.
Texture rain, crackle, honeycomb, dots, diamond, ice, frosty, frozen, ice, convex.