Overtime the line will develop line memory coils, but as a problem depends on the line. I’ve used flourocarbon lines that doesn’t pose a line coil issue. The line may jump off from the spool, but it goes down the hole straight.
Best knot strength is the one you can tie best. For myself, it’s the trilene knot. I pull most of the knot snug from that knot from the tag end, before I finish snugging it from the main line. My main line is all straight without any line deformity. If the line is coily, I will do a little line stretch by hand and let it go down the hole with a heavier weight before I start fishing. A low memory line will relax and most of the coil problem will be gone.