Since you brought it up might as well discuss it. People like their clothes to smell better and resort to fabric conditioners to perfume their laundry with attendant downsides.
SO, why not use scent beads?
they are put in the drum at the beginning and you run the wash as normal. And the clothes come out smelling more scented than from usual detergent.
If you have a dryer then the scent gets boosted 50% more. But if you line dry the effect is more muted.
For the purposes of scent, scent beads are safer (for the machine) than fabric softeners. Came out in the US over five years back but has only recently started to become available globally.
https://www.amazon.in/gp/product/B07QM9TD8Y/
managed to snag one for Rs.383 before it went OOS
https://www.amazon.in/Laundry-Fragrance-Booster-Scent-Beads/dp/B07WHDFZH7/
https://www.amazon.in/gp/product/B09VZPCJQW/
Local equivalents.
Scent beads work out more pricey per wash than fabric conditioner. I use around 20gm per load and not a full cap. Now and then.
How safe are they to use? No internal consumption here. Only skin contact. Some overuse and reviews on amazon US of people with allergic reactions.
I can hardly smell the scent when I wear the clothes but if you rub the dry fabric with itself it does give off the scent which is pleasant. For bedsheets or quilts put into storage.
Scent beads are by no means necessary but optional extras. A novelty I wanted to check out.