mastodon の viewport-width が 1025px 以上だった時に無理やり2カラムに修正するやつ

mastodon_force_2_column_mode.css

@media screen and (min-width: 1025px) {
  .tabs-bar {
    display: flex;
  }
  .drawer__header,
  .tabs-bar__link[href="/web/statuses/new"],
  .columns-area>[role="region"] {
    display: none;
  }
  .drawer {
    flex: 3;
    min-width: 300px;
  }
  .columns-area>:last-child {
    flex: 5 !important;
    max-width: 800px;
    margin-right: 5px;
  }
  .columns-area>:last-child>.column,
  .mastodon-column-container>.column {
    flex: 1;
  }
}