What does ... and that note you found reward?

No reward has been recorded for ... and that note you found yet.

Where does ... and that note you found start?

Burned-Out Remains in The Barrens offers it.

The quest log lists it at level 22.

No. The quest exists in Classic Era as well.

World of Warcraft: Forever · quest · level 22

A level 22 quest in World of Warcraft: Forever, offered by Burned-Out Remains in The Barrens. Recorded by 1 player running the addon.

Pay and objectives show once a player with the addon accepts the quest.

No reward item has been recorded for this quest. The offer window fills this in when a player with the addon opens it.

What does ... and that note you found reward?: No reward has been recorded for ... and that note you found yet.
Where does ... and that note you found start?: Burned-Out Remains in The Barrens offers it.
What level is ... and that note you found?: The quest log lists it at level 22.
Is ... and that note you found new in WoW Forever?: No. The quest exists in Classic Era as well.

What sells at this level, and what to keep from these rewards, is in the level 20 to 30 gold guide.

Source: what players running the addon saw in the quest windows; the quest text itself stays in the game. Every quest seen · The Barrens