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

A set of decorative glasses in metal frames.
The size of the glass sheet is 1300x3000mm.
The relief is configured with seamless normal bump maps; you can decrease or increase the relief of the pattern.
The size can be adjusted with tiling and mapping.
The opacity and tint of the glass can be adjusted in the volumetric scattering section.

Use as: glass partitions, glass panels, kitchen fronts, cabinet fronts, wardrobe fronts, zoning, shower partitions, shower, glass curtain for the bathroom, glazing.

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

Patterned glass, relief glass, tinted glass, glass partition, glass panels, bronze/honey/bottle brown glass, carved pattern, crow, stripe, flutex, triplex, reinforced, bubble, frosted, wavy, rain, ice, frosted, frozen, convex, ribbed.