If you used everything recommended in your wash you would use washing powder or gel, fabric conditioner, calgon or similar, something to disenfect and maybe those smelly beads.
Would cost a fortune to do 1 wash, plus the environmental impact of all those products and the packaging.
Engineer told me recently the best thing to keep your washing machine clean inside is a hot wash occasionally. And once of those dr beckman sachets once a month. And if your washing machine is clean your clothes should be clean as well.
I recently switched from powder to gel and have noticed things aren't as fresh smelling or as clean anymore. I wash on 40 for dirty stuff like dhs work gear (builder), stuff we have wore to the ponies, stuff that has got wet from the lake (watersports) and with powder (persil bio) I don't find anything ever needs a second wash. Whites and towels go on a 60.
If you are getting washing still smelling and use gel or capsules try old fashioned washing powder instead. We have some really stinky stuff, ds is always in the lake, or rolling around in the ponys stable or digging in mud. Dh is a sweaty arsed builder and comes home filthy, especially when it's warm. It all comes clean and smells fresh with powder and fabric conditioner.