Glass blocks in the interior isn’t a massively used solution (at least in Lithuania) because for a lot of people who create associations with the Soviet period, schools, etc. I’d recommend not to compare them with the past and to estimate block benefit and abundance of the usage opportunities.
It’s a very firm material which can be compared to bricks, it’s easy to take after and it transmits light, it also gives uniqueness due to its texture, appearance and possible colors. Glass blocks can be used in a bathroom instead of a shower enclosure, in any room instead of a window or a partition, also in public rooms such as restaurants, hotels and offices.
I’ve been looking for suitable examples for a long time because a lot of them have already got old morally and it’s meant to show that glass blocks perfectly fit and in contemporary, especially, Scandinavian interior!
Here you see the usage in ceiling, probably not everyone could notice that but the effect is indeed noticeable.