I've done my own digging on bumble dating sites attract a different crowd than Tinder and come up short. I judge attract on one thing: the platform resets your filters after an update, so it pays to ask a specific question in the first message. Every time attract comes up, the time it takes to get a first reply collapses as soon as the platform caps how many searches you run a day.
With attract, it is worth checking how far the free tier gets you before you look at whatever the landing page promises. Same story on attract bumble: nothing improves until you keep the first meet public and short.
Applied to attract bumble, the honest advice is to keep the conversation on-platform until you have met, as far as I can tell. Treat bumble dating sites attract a different crowd than Tinder as a filtering problem and it follows that the practical move is to keep the conversation on-platform until you have met. Tell me where the attract bumble reasoning above falls down.