I travelled from London to Paris on Saturday and back on Monday in standard, no issues whatsoever. All this bedbug chatter seems to be a small few tiktok posts being repeated and cited over and over, rather than anything actually verifiable.
As an Avantage member I also got to use the Paris "lounge" on the way back; this is an ex-Thalys facility a few doors to the west from Gare du Nord. 30-40 seats with a small choice of refreshments – coffee machine, water, juice, and some packaged shortbread biscuits. At least it has a free toilet unlike the public area of GDN. As it's outside the station I needed to leave an hour before my train to go through the necessary formalities.