Enhance T-SQL Code

Question

Hello Experts,
I have here an execution plan for a query and appreciate your support if you have any recommendations could help enhance it

Answer 1

The tool is amazing , thank you
please find here the output
Actual Query
SELECT Function1(Object1.Column1, ?) AS Column2, Function1(Object1.Column3, ?) AS Column4, Function1(Object2.Column5, ?) AS Column6, Function1(Object2.Column7, ?) AS Column8,
Function1(Object3.Column9, ?) AS Column10, Function1(Function2(Function2(Object3.Column11, Function3(?), ?), Function3(?), ?), ?)
AS Column12, Function1(Object1.Column13, ?) AS Column14, Function1(Object4.Column15, ?)
AS Column16, Function1(Object1.Column17, ?) AS Column18, Function1(Object2.Column19, ?) AS Column20
FROM Object5 Object6 INNER JOIN
Object7 Object3 ON Object6.Column21 = Object3.Column22 INNER JOIN
Object8 Object2 ON Object2.Column21 = Object3.Column23 INNER JOIN
Object9 Object1 ON Object1.Column21 = Object2.Column24 AND Function1(Object1.Column13, ?) <> ? INNER JOIN
Schema1.Object10 Object4 ON Object4.Column21 = Object1.Column13
UNION
SELECT Function1(Object1.Column1, ?) AS Column2, Function1(Object1.Column3, ?) AS Column4, Function1(Object2.Column5, ?) AS Column6, Function1(Object2.Column7, ?) AS Column8,
Function1(Object3.Column9, ?) AS Column10, Function1(Function2(Function2(Object3.Column11, Function3(?), ?), Function3(?), ?), ?)
AS Column12, Function1(Object1.Column13, ?) AS Column14, Function1(Object4.Column15, ?)
AS Column16, Function1(Object1.Column17, ?) AS Column18, Function1(Object2.Column19, ?) AS Column20
FROM Object11 Object6 INNER JOIN
Object12 Object3 ON Object6.Column21 = Object3.Column22 INNER JOIN
Object8 Object2 ON Object2.Column21 = Object3.Column23 INNER JOIN
Object9 Object1 ON Object1.Column21 = Object2.Column24 AND Function1(Object1.Column13, ?) <> ? INNER JOIN
Schema1.Object10 Object4 ON Object4.Column21 = Object1.Column13
UNION
SELECT Function1(Object4.Column25, ?) AS Column2, Function1(Object13.Column24, ?) AS Column4, Function1(Object13.Column26, ?) AS Column6, Function1(Object13.Column27, ?)
AS Column8, Function1(Object13.Column28, ?) AS Column10,
Function1(Function2(Function2(Object13.Column29, Function3(?), ?), Function3(?), ?), ?) AS Column12,
Function1(Object13.Column30, ?) AS Column14, Function1(Object4.Column15, ?) AS Column16,
Function1(Object13.Column17, ?) AS Column18, Function1(Object2.Column19, ?) AS Column20
FROM Schema1.Object14 Object13 INNER JOIN
Schema1.Object10 Object4 ON Object4.Column21 = Object13.Column30 INNER JOIN
Schema1.Object9 Object1 ON CAST(Object1.Column3 AS nvarchar(100)) = cast(Object13.Column24 AS nvarchar(100)) INNER JOIN
Schema1.Object8 Object2 ON Object2.Column24 = Object1.Column21
ACTUAL EXECUTION PLAN,