I think T436376 introduced that we changed what's included in the browser test output:
00:05:12.102 │ 13.601s │ npm install in 'mediawiki/extensions/AbuseFilter' │ 00:05:12.102 │ 14.032s │ wdio/cypress tests in 'mediawiki/extensions/AbuseFilter' │ 00:05:12.102 │ 14.033s │ Browser tests in 'mediawiki/extensions/AbuseFilter'
Browser tests used to include both install and test time.
Actually I want to remove "Browser tests in ...". Let me check what's best.