>>16970287https://www.billboard-japan.com/charts/year_end/These are better charts because they're aggregates. The only one Suisei charted on was 42nd on Download Albums and a lot of those behind her there blasted past on the Top and Hot charts which count physical sales, radioplay etc. That said, Still Still Stellar seems to be the best charting chuuba album to date, as HimeHina was 74th on the same chart the previous year. But do note that Pmaru-sama (and her team) made it to the hot artists, lyricists and composers charts, although not on any of the song charts.
She didn't chart on any of the Oricon yearly charts or at least not the ones publicly available. But speaking of Pmaru-sama, take a look at their weekly Youtube chart:
https://www.oricon.co.jp/rank/yt/w/2022-01-13/p/3/ 