Is this a Decision?

I returned the ESA (renewal) Form in March, it was signed for but I've not had a response. Several telephone calls later, I still don't know what's happening - phone not being answered or being told "just wait".
I was put in the Support Group in 2014 and the CAB advisor(s) didn't think I'd be called for an interview partly because I've developed a couple of extra conditions post my original Support Group decision and PIP was recently renewed for 10 years, and believed it was unlikely I’d be called for interview but the DWP pushed the PIP renewal until 2 days before the Tribunal date so I was very unsure.
However, I've just had a letter from the DWP that says that there's been "a decision on your capability to work. You have been put in the Support Group"
There is no mention of assessments (paper or otherwise) or a response to the ESA Form so I wonder whether anyone else has received a similar letter as I think this sounds like a decision – i.e. via a paper assessment not F2F but is it?

(don’t know if draft got through so sorry .....)
Anyway, good news/bad news.
The good is that the letter is sort of right, inasmuch as the letter is a “decision” that the claim and cash will continue but the bad news is that this will only be for 6 months.
I was told that this is deferral is now standard practice and, in 6 months’ time (why are they always at Christmas!?) I may have a F2F, tel, video, paper review or, possibly none at all as the recent decision will simply be continued.
You were absolutely right with the “badly written ........ rogue letter”, in this case horribly uncertain and there’s now 6, horribly stressful months to get through.

Tel DWP again and, yes, I have had a decision + am still in the Support Group although I’ll be sent another form in October and have to make a fresh claim. It was pointed out that, although I know that the DWP can and do ask for such an assessment every 3 months, I stupidly hadn’t thought of 2 ESAs and 1 PIP in 7 months. A previous call had indicated that this can happen when people go to a Tribunal, which I have twice, although the 2nd was cancelled 2 days before.
On top of all of this, I was also told that there is, obviously, a huge backlog because of CORVID and that, where possible assessments are really being deferred for 6 months.
It does seem as though (and it was just about admitted to me) that this is going to be a deferral masquerading as a reclaim.
None of this helps me of course but, given the numbers involved, I wonder how many other people may, because of everything being put on hold, be having premature reclaims - though, of course, it will never be admitted!