Meanwhile, I've had nothing but trouble with consumer APC and find Cyberpower's bullet proof. Had one that went 10yrs before any issues, and a second with 3+ and counting, no problem.
An alternative to both is the burgeoning battery banks for camping/emergency power. Most of these offer UPS quality switching times, so they can act as a UPS when not in use for an emergency. Ecoflow/ anker solix/etc. A big advantage of these is the battery chemistry is very long lived and much better than UPS lead acid. Dont expect a pure sinewave, but you weren't going to get that from most consumer UPS anyway.
This Anker does all of the above. Its switching speed is 10ms, so it fits the UPS niche as well.