getChannelsDetails

function getChannelsDetails() {
  let ss = SpreadsheetApp.getActive();
  let sh_settings = ss.getSheetByName('Настройки');
  let sh_paste = ss.getSheetByName('Результат');

  sh_settings.getDataRange().getValues().slice(1)
    .forEach(row => {
      if (row[1]) {
        let members, online, bio
        let url = `${row[0]}/?pagehidden=false`;

        let response = UrlFetchApp.fetch(url).getContentText();
        let match_members = response.match(/"tgme_page_extra">(.+?)<\/div>/)?.[1];
        if (match_members) {
          [members, online] = match_members.replace(/members|online|subscribers|\/s/g, '').split(',')
        }
        bio = response.match(/tgme_page_description" dir="auto">(.+?)<\/div>/)?.[1];
        let row_to_paste = [[new Date(), row[0], members, online, bio]];
        sh_paste.insertRowBefore(2);
        sh_paste.getRange(2, 1, row_to_paste.length, row_to_paste[0].length).setValues(row_to_paste);
      }
    })
}

function onOpen(e) {
  SpreadsheetApp.getUi()
    .createMenu("❄️")
    .addItem("парсим!", "getChannelsDetails")
    .addToUi();
}