I get like random downtimes, sometimes an hour, sometimes several hours. It is normally quite random to know how long it will last. So this is a great question and I look forward to other answers as what’s there now is great .
For me, if it seems like the downtime will be like <= 60 mins, I’ll likely go to MoT and have a surf around any new questions etc on the Club boards if I haven’t been there for a while. Otherwise I’ll have a hoke through some of the articles and videos/courses I have saved off to do via my Pro subscription (it helps to have one of those for sure ) again assuming I have not done that recently. If I’m up to date on my MoT stuff, then surfage shall be done . I try to keep it work related, but sometimes it is possible to go something, ahem, less work oriented
If the downtime will be longer and/or more clear that it will be on and off for a definite period of time, then I’ll likely dip into a new skill, e.g. performance testing, which is somethign I’ve got some basic knowledge around, but wan tto enhance via MoT courses and general learnings from the interweb and YouTube etc … basically trying to find interesting and related stuff which I can take in (or bookmark for the future) when I find it
Hope this helps and congrats on getting in-house!