Poco f1 is compatible with one plus 6's version(gery scale works. But not shown in screenshot)

Device brand and model:

Poco phone F1 (custom rom: lineage os 17.1)

Ratio version:3.2.7

Problems encountered when using ratio:

Since oneplus6 display is narrower, the dimension in the ratio settings page is a little longer(as you can see on the screenshot with Instagrams usage)

Screenshots: