I was planning to buy Sea of Thieves last week, but my friend bought it first and warned me about the size.
It looks really fun, but not 100GB fun.
Also, if the dev kit really costs 100GB of space, I predict further wins for the indie retro game makers.
(Edit: The Dev kit costing 100GB seems to be a misquote by the article. Sea of Thieves release notes blame kit updates for the overall size, but not for all of it. https://www.seaofthieves.com/release-notes)
Fun fact: 100GB is enough space to store every single video game ever made until around mid 1995.
Systems before the N64 don't really meaningfully use up any of your 100GB. The entirety of everything ever published for the Atari takes less space, combined, than a three page Word document.
The N64 library is the earliest game system to take up a meaningful portion of your 100GB, with every published game combined adding up to almost 32GB.
The 1995 date is because the PlayStation One finally released, with a huge launch catalog, and some games that take up to 3GB each, adding enough storage to the whole world's gaming library to finally push through the 100GB.