Deadlift technique advice for an older weights newbie

A general question for the group - with something like deadlifts, how far does one need to progress in weight for if the goal is to help one’s cycling?

I intended to start weight training just before covid and then covid happened and I never went to a gym. I did body weight stuff and then got some dumbbells and was able to create plenty of DOMs with just those dumbbells.

Back to my question - so you get to half body weight, 75%, 100%, over 100% - is there a sweet spot end point for maintenance if you just want to be a good cyclist?