=ARRAYFORMULA({REGEXREPLACE(TEXTJOIN(", ",1,
QUERY(ARRAY_CONSTRAIN(SUBSTITUTE(IMPORTDATA(A2),"""",""),1000,15),
"where Col1 contains '<meta property=og:title content='")),
"<meta property=og:title content=| />",""),
TRANSPOSE(REGEXEXTRACT(QUERY(TRANSPOSE(QUERY(TRANSPOSE(
ARRAY_CONSTRAIN(SUBSTITUTE(IMPORTDATA(A2),"""",""),8000,3)),,50000)),
"where Col1 contains '<a class=btn btn-secondary'"),"\>(.*)+\<"))})
демонстрационная таблица