For me there is not an overabundance of suds in the wash, no foam is going to run out of the machine. I do notice that the composition of the suds is different than when using Persil or Miele for whites. What I mean is the Tide suds seem to be like foam vs the suds produced by Persil or Miele which produce a more compact sud. Sounds nutty but thats the way it looks to me.
You can see the difference when the wash water is drained into the sink. With Persil or Miele the water is often very milky with small suds. With Tide the water is less milky but with larger suds floating in it. I can also see the difference during the tumble pause when the water is still and the suds float to the top.
The problem is that these large Tide suds never seem to reduce or dissipate after the 2 or 3 rinses are completed. When I don't use FS I still see the same amount of suds in the 3rd rinse as there were in the 2nd rinse. I was going to let that pass until I noticed the roughness in the clothes even using FS.
When using Tide Total Care there are suds in the wash, but even at the beginning of the first rinse, there are clear water droplets all over the glass as if FS or silicone has been released. These droplets are never present during the wash, but with the first rinse the water is starting to look clear, but of course no bleaching action in product just optical brighteners.