The Compact tabs mode on Safari, be it on the iPhone, iPad or Mac, is a but controversial. Some people really hate it and want to go back to the previous state.
Fortunately, Apple added the option to freelly between the two modes. Whatever your preference is, you can set it up in Safari's settings page.
Here's how to do it:
1️⃣ With Safari focused, click the Safari menu on the macOS's Menu bar;
2️⃣ Click Preferences;
3️⃣ Go to Tabs;
4️⃣ Pick between a Compact and a Separate tab layout.
Don't know about you, but I for one prefer the new Compact mode, as it gives me more screen estate for the actual websites.
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