Any element that has a data-title attribute will show a tooltip (with the value of the attribute) on mouseover. For example: "...someday screen PPI may increase further..." (note that the dotted underline comes from the abbr element, not the tooltip).
...someday screen <abbr data-title="pixels per inch">PPI</abbr> may increase further...
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2022-08-26 UTC."],[],[]]