The Twins finished the month of May with an 18-12 record. Given the schedule they faced in that month, 18 wins isn't exactly dominating. They closed with a 4-5 record in their last nine games playing bottom-dwellers in those last games.
Here are the stats for May per ESPN. https://www.espn.com/mlb/team/stats/_/name/min/split/41/table/batting/sort/OPS/dir/desc and https://www.espn.com/mlb/team/stats/_/type/pitching/name/min/split/41
Just a few highlights. Luis Arraez, Trevor Larnach, and Gary Sanchez had fine months. Arraez was an OBP machine. Trevor Larnach had a fine month, but only played in 16 games due to injury. Lowlights: Buxton, Jeffers, and Miranda. Pitching highlights included excellent months from Sonny Gray, Joe Ryan, Devin Smeltzer and Jhoan Duran. Disappointments included Chris Archer and Yennier Cano.
The team outscored their opponents 137-120. The hitters walked 105 times, while Twins' pitchers walked 83 hitters, they struck out 256 batters while the hitters struck out 231 times. The Twins allowed 249 hits while getting 266 hits from their offense. The home run discrepency was 30-27 in favor of the Al Central leaders.
Looking at stats provides a little longer view of the season and the month. My view of the month was that there were some interludes where they were very good, but they finished the month playing less than their best. Injuries and COVID-19 have flipped the roster sideways. Byron Buxton needs to either get right or get well and the pitching staff needs health or reinforcements.