YouTube made some changes recently:
Going to the homepage at YouTube.com no longer shows videos solely from your subscriptions, but also recommended videos:
Below those are "Recent videos from" subscriptions, but they are organized dynamically based on YouTube's algorithms, instead of simply being chronological.
However, when navigating to the page YouTube.com/feed/subscriptions by clicking "My subscriptions" we get to the desired place:
How can that mode be made default when navigating to YouTube.com?