Operating under the Pandemic restrictions, Laughlin Casino gaming revenue as reported by the Nevada Gaming Control Board was down as expected.   The November 2020 report showed a -18.97% decrease compared to November of 2019.

Gaming Revenue in Laughlin was $33,348,032 compared to $ 41,156,771 in November of 2019. 

Laughlin Gaming Revenue Overall for 2020 so far:

January     +0.88%

February    +5.84%

March        -38.2%      (Casinos Closed March 15th)

April          -100.03%  (Casinos Closed all month)

May           -100.03%  (Casinos Closed all month)

June           -14.61%    (Casinos opened June 4th)

July            -16.95%     

August       -9.44%

Sept.          -2.68%

October     -13.27%

November -18.97%

The Laughlin result was better than the Las Vegas Strip  (down -32.46%) and Clark County as a whole (down 20.54%).   However, the Boulder Strip (which includes Henderson properties) was up 18.23%.   
Source: Nevada Gaming Control Board

https://gaming.nv.gov/index.aspx?page=172