Hi!
So your flow has a 'List rows present in a table' action block, right?
If so, did you consider to add a 'Filter array' action block, assign 'List rows present in a table' outputs as its input, then configure condition rule for filter purposes?
Or, did you consider to configure an ODATA expression in 'List rows present in a table' action block 'Filter query' input?
Newbie to Power Automate? THen I recommend the first approach
Hope this helps