Cant Set Ratio as default launcher

Device brand and model:

Xiaomi Redmi Note 8 Global version

Ratio version:3.2.1

Problems encountered when using ratio: Installed on phone ratio lite but cant set as default launcher , even no option is showing about setting launcher

Screenshots:

(Include here the required 6 screenshots of the UI. IMPORTANT: set the display and font size to default)

Try clearing the default app settings.

Go to settings>App> Ratio> homescreen and select Ratio

Didnt even show Ratio in apps , only blloc app is showing

Please help me

Can you check if it’s available in app list in settings.

Not available in app list in settings

Even mobile cant installing ratio