Trigger Flow On Column Value Change

up:: PowerAutomate

PowerAutomate - Trigger Flow on Column Value Condition - YouTube
Trigger Conditions in Power Automate - EnjoySharePoint

In case you need to triger flow when spesific requirements are met, you can use Instant flow with Trigger conditions available through settings:

If you have columns like Status (Choice with New option), Deadline (DateTime),
adding a following line:

@and(equals(triggerOutputs()?['body/Status/Value'], 'New'), not(empty(triggerOutputs()?['body/Deadline'])))

will trigger a flow only if the Status is New and Deadline is not empty.

@and(equals(triggerBody()?['Status']?['Value'], 'Nowy'), not(equals(triggerBody()?['Deadline'], null)))