No, actually.
None of the writer's conclusions said anything about bias:
'Findings include:
President Trump dominated media coverage in the outlets and programs
analyzed, with Trump being the topic of 41 percent of all news
stories—three times the amount of coverage received by previous
presidents. He was also the featured speaker in nearly two-thirds of his
coverage.
Republican voices accounted for 80 percent of what newsmakers said about
the Trump presidency, compared to only 6 percent for Democrats and 3
percent for those involved in anti-Trump protests.
European reporters were more likely than American journalists to
directly question Trump’s fitness for office.
Trump has received unsparing coverage for most weeks of his presidency,
without a single major topic where Trump’s coverage, on balance, was
more positive than negative, setting a new standard for unfavorable
press coverage of a president.
Fox was the only news outlet in the study that came close to giving
Trump positive coverage overall, however, there was variation in the
tone of Fox’s coverage depending on the topic.'
<
https://shorensteincenter.org/news-coverage-donald-trumps-first-100-days/?utm_source=POLITICO.EU&utm_campaign=ab6d830a9d>
There's the actual report. Feel free to provide quotes that agree with
the "American Thinker's" spin.