By keyboard, and on a phone
What works without a mouse, and what does not yet.
Keyboard and phone
By keyboard: Tab moves to a record and Enter or Space selects it (with Ctrl or Ctrl + Shift for OR and AND); Rename… in the column menu renames without a double-click. Starting a filter by double-click has no keyboard equivalent yet, and a column menu closes on a click outside it, not on Escape. On a phone, one column shows at a time with a tab strip above it.