Potty training with new sibling coming soon

My second baby will be born just before my firstborn turns 2yo. I still have 3 months before my EDD in end feb 2024. Thinking of taking the time to do potty training now, but also I’ve heard how toddlers may regress in the potty training in view of a new transition / sibling introduction. What is your experience If you have similar encounters? Is it then better to wait until firstborn is more settled with sibling first then train? #advicepls