from: 2185192822
to: 4294967295
channel: 8
decoded {
  portnum: TEXT_MESSAGE_APP
  bitfield: 1
}
id: 613365031
rx_time: 1754470424
rx_snr: -4.5
hop_limit: 5
rx_rssi: -102
hop_start: 7

A check just confirms *someone* heard your message. Not getting a check means *maybe* someone heard you, but also maybe not.