BTS' JIMIN's solo song ”Who” ranks 40th on the UK official chart... 2 weeks of chart regression

The title song "Who" from BTS's JIMIN's second solo album has made a chart-back in the UK Official Singles Chart Top 100.
According to the latest chart released on the 28th, "Who" rose 10 places from the previous week to 40th place, remaining in the ranking for the 10th consecutive week.
"Who" entered the Top 100 chart at No. 4 for the first time, and then ranked No. 11, 25, 32, 47, 48, 51, and 52.
Since then, it has achieved a 'chart retrograde' for two consecutive weeks, ranking 50th and 40th.