Bob
Aviation media has reported extensively on effects of Covid on this sector. I draw my blog content from many sources so would have to go through articles to sort out specifics for you. The site I write for is theplanespotterscommunity.co.uk
The Qantas Captain, now retired due to Covid crisis, is Richard de Crespigny. He was in charge of QF32 which had an uncontained engine failure just out of Singapore in 2010. He tweets regularly, mostly about aviation. HiFly Portugal decided to take an ex-Singapore Airlines A380, one of the early ones. They used it during Thomas Cook repatriation, before carrying PPE around the world. BA's in storage at one of the many Paris airports (I believe this one's about 60km south!). Managed to tear up taxiway due to weight.
I also follow a business travellers forum, where it's interesting to read the opinions of gold/platinum card holders. One has described the A380 as "the lorry of the sky". Others have complimented its quietness and comfort. Whatever aircraft an airline chooses, it's fitted out to their spec, including engine make.
Emirates' outgoing President Sir Tim Clark recently announced their A380 fleet would return to the skies. They are also disposing of the older ones if only for parting out, to cut the cost of spares. He was instrumental in bringing the A380 to BHX, his local airport. It will take time for passengers to return, especially as many are in transit to Australia, NZ, China, Japan.
As for the A350, fewer critics than for B787. Personally, won't go near any newer Boeings until they get their act together....