As a percentage of total turnout, and by raw count, yes.. but very barely. But Trump actually performed significantly worse in 2020 compared to his main party competitor.
However, given that a much higher vote count went to the two main party candidates (instead of independents or third party) than in the previous election, trump performed a bit worse compared to the Democratic candidate.
2016: vote percentage to main party candidates: 94
2016: Trump got 95.38% of the vote count that hillary received)
2020: vote percentage to main party candidates: 98
2020: Trump got 91.36% of the vote count bidens received
I am weary to assume that Trump (or Biden's) votes indicate approval of that person. I believe this time around there was a higher voter turnout for "not the other guy" than we typically see.