Animation Test
Glass BSDF Shader in Blender lacks a lot of features and does in general a pretty bad job under Eevee render engine from an aestetic point of view; the same can be said of the Principled BSDF Shader with transmission enabled.
With that in mind I started to forge a mix of nodes which after adding feature over feature, and grouping the spaghetti into a single usable node, became this. Although the shader was made with Eevee in mind, it doe a very good job under Cycles engine too.
You can download the .blend file from: https://www.blendermarket.com/products/eevee-ready-glass-physical-material