I think for at least the beginning of Act 1, itâ€™s ok for there to be some long rest abuse. People are still learning the game, plus you have so few hit points and spell slots.
I think if travel to camp was limited to only being accessible from a waypoint, you could have scenarios like falling into the Underdark where you literally canâ€™t long rest until you find a waypoint down there, which I think would work well. And if youâ€™re in really bad shape when youâ€™re down there, you would need to rely on mechanics like stealth to try and avoid combat in order to find the waypoint, which adds an interesting dynamic. Sure that wouldnâ€™t affect the first part of the game much, but hopefully as the game progresses, there would be more instances where you canâ€™t just backtrack to camp.