Sipho
Rookie
Well, in regard to Margaret Court, a quick search will tell you (from 2021)...Why would she get boos from Aussies of all people? If Americans don't boo Serena, don't see why Australians would act different with their biggest female tennis legend.

Who is Margaret Court, the controversial tennis great who is back in the spotlight?
Former tennis great and Pentecostal minister Margaret Court has drawn repeated criticism in recent years for her comments on the LGBTIQ+ community.

Why is she controversial?
Court, 78, is now a Pentecostal minister at a church in Perth and has drawn repeated criticism over recent years for her outspoken position on the LGBTIQ+ community.
Court has publicly opposed same-sex marriage, condemned transgender athletes and said LGBTIQ+ school lessons are "of the devil" - comments which have been denounced as homophobic.
In 2013, she wrote a letter to a newspaper decrying the birth of Australian tennis player Casey Dellacqua's child in a same-sex relationship.
'Personally, I have nothing against Casey Dellacqua or her "partner",” she wrote.
“It is with sadness that I see this baby has seemingly been deprived of his father.”
Several years later, Court sparked another media storm after declaring in a letter to a local paper
that she would no longer fly with Qantas over the airline's support for gay marriage.
At the time, Australia was yet to legalise gay marriage, though opinion polls had shown the majority of Australians supported it.
"I am disappointed that Qantas has become an active promoter for same-sex marriage," Court said in the letter published in The West Australian newspaper.
"I believe in marriage as a union between a man and a woman as stated in the Bible.
"Your statement leaves me no option but to use other airlines where possible for my extensive travelling."
In 2019, Court took aim at trans athletes and trans children in a sermon at the Pentecostal church where she is a minister.
"Because we are living in a season ... even that LGBT and the schools - it's of the devil, it's not of God," Court told her congregation at the time.
"And when children are making the decision at seven or eight years of age to change their sex ... no, just read the first two chapters of Genesis, that's all I say. Male and female.
"It's so wrong at that age because a lot of things are planted in this thought realm at that age. And they start to question 'What am I?' and if you are a Christian... you believe the word of God, this is our TV guide to life...
"And you know with that LGBT, they'll wish they never put the T on the end of it because, particularly in women's sports, they're going to have so many problems."
Court's sermon came a month before her Grand Slam was due to be honoured by Tennis Australia.
Margaret Court is of course fully within her rights to hold those views, and I'm sure millions of people agree with her.The governing body was torn over how to commemorate its greatest woman player
but agreed to "recognise but not celebrate" Court's achievement, while distancing itself from her personal views.
"As often stated, Tennis Australia does not agree with Margaret's personal views, which have demeaned and hurt many in our community over a number of years," TA said in a statement at the time.
"They do not align with our values of equality, diversity and inclusion.
"Our sport welcomes everyone, no matter what gender, ability, race, religion or sexuality, and we will continue to actively promote inclusion initiatives widely at all levels of the sport."
At the same time, millions of people don't share those views, so I wouldn't be surprised if she did get booed at the Australian Open.
I believe there's a number of prominent former tennis greats, like Billie Jean King, that want Margaret Court Arena to be renamed in honor of Evonne Goolagong Cawley or someone else.

Should Margaret Court’s Name Be Removed from an Arena at the Australian Open?
The tennis legend is increasingly known for her anti-gay campaigning. Should her name be removed from an arena at Melbourne Park?
It's a situation.
Obviously someone with her views wouldn't be welcomed or honored at the US Open. And I imagine the same holds true at the Australian Open.