Yes, your choices in past Dragon Age games don't matter as much as they could in The Veilguard, but BioWare wants you to know "that doesn't mean they're gone"
Briefly

A lot of Dragon Age fans were left disappointed at how few decisions from previous games matter in The Veilguard, but BioWare has promised they're still important.
The big thing for us is we wanted to make this story, every single choice you make, feel relevant to it.”
Just because these choices from the past library of games didn’t necessarily impact this particular story, that doesn’t mean they’re gone.
Players that have seen the game’s secret 2D ending will see events from past games being quite pertinent.
Read at VG247
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