Ms. Estella Caprotta (oldest known emigrant from Argentina) sadly passed away around 22 May 2022, aged 109 years and 4 months, in San Casciano in Val di Pesa, Florence, Tuscany Region, Italy. She was born in Buenos Aires, Argentina, on 12 January 1913. She was the 26th OLP in Italy. 

https://www.nove.firenze.it/morta-a-109-anni-estella-caprotta-quel-sorriso-senza-confini.htm

Riposa in pace Signora Caprotta  

After the death of Ms. Benegas de Gallego, the Doyenne of Argentina could be Ms. Rosa Catalina Barbero de Cammisi (born 15 November 1911 in Cavour, Las Colonias, Argentina, 110) who is currently the oldest known documented living person in Argentina (there are several people who claim to be 114, 113 or 112 y.o. in Argentina but no one is documented yet).
Ms. Barbero de Cammisi became the oldest known (documented) living person in Argentina, following the death of 115-year-old Casilda Benegas de Gallego on 28 June 2022. She currently lives in Esperanza, Las Colonias, Argentina. 
Her case is currently pending on LAS.
At 110: https://www.rosario3.com/informaciongeneral/La-emocionante-historia-de-Tita-la-abuela-santafesina-de-110-anos-fanatica-de-la-pesca-y-de-las-papas-fritas-20211113-0028.html

About the Doyen of of Argentina there are no SCs or almost SCs men pending or validated by LAS.

After the death of Ms. Barbero de Cammisi, the Doyenne of Argentina could be Ms. Maria Gabriela Calderon de la Barca Curutchet (born 22 February 1912 in Adrogue, Buenos Aires Province, Argentina, 110) who is currently the oldest known documented living person in Argentina (there are several people who claim to be older in Argentina but no one is documented yet).
Ms. Calderon de la Barca Curutchet became the oldest known (documented) living person in Argentina, following the death of 110-year-old Rosa Catalina Barbero de Cammisi on 19 August 2022.
She currently lives in Buenos Aires, Argentina. 
Her case is currently pending on LAS.
At 110:

About the Doyen of of Argentina there are no SCs or almost SCs men pending or validated by LAS.

Update after the collected documents about Ms. Barletta.

After the death of Ms. Benegas de Gallego, the Doyenne of Argentina should be Ms. Isabel Barletta (born 12 September 1911 in Flores, Buenos Aires Province, Argentina, 111) who is currently the oldest known documented living person in Argentina (there are several people who claim to be older in Argentina but no one is documented yet).
Ms. Barletta became the oldest known (documented) living person in Argentina, following the death of 115-year-old Casilda Benegas de Gallego on 28 June 2022.
She currently lives in Flores, Buenos Aires, Argentina. 
Her case is currently pending on LAS.
At 111:
https://m.facebook.com/cynthia.bordenave/posts/pfbid07HtSc1FVkqwYYJJQRXFswixPU5ft1S8GGYjMJGvb1xDS1s1YEFkGYuX1tBd5fxN3l

Note: Ms. Barbero de Cammisi was never Doyenne of Argentina.
Ms. Calderon de la Barca Curutchet, for now, is not Doyenne of Argentina.

Has there been any reports of Maria Teresa Bustos since her 110th birthday (in April 2022)?

She is still listed in the wiki rankings 

Posted by: @mrcatlord

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Has there been any reports of Maria Teresa Bustos since her 110th birthday (in April 2022)?

She is still listed in the wiki rankings 

Yes:

Posted by: @mendocino

↑

Posted by: @mrcatlord

↑

Has there been any reports of Maria Teresa Bustos since her 110th birthday (in April 2022)?

She is still listed in the wiki rankings 

Yes:

 

 

And she can stand with minimal assistance, which is good

Hopefully she gets validated as she definitely looks like she could be an SC