Search row for array match of a specific word, and return the dates from column A that match - arrays

Question

Objective:
Looking up Class ID (ignoring anything past the **), and return corresponding date in (B2:B).
Then Looking up Class Event, and return the corresponding date in (C2:C).
I have tried combinations of HLookup, VLookup, Index & Match, and Query, but cannot seem to get it to work correctly.
My Sheet:
Column | A | B? | C? | D | E | F |
Row1 | [Class ID's] | [Class ID Date] | [Class Event Date] | [Dates] | [Name1] | [Name2] |
Row2 | Class ID1 | 01/02/2021 | 01/04/2021 | 01/01/2021 | | Class ID3** |
Row3 | Class ID2 | 01/08/2021 | 01/09/2021 | 01/02/2021 | Class ID1** | |
Row4 | Class ID3 | 01/01/2021 | 01/07/2021 | 01/03/2021 | | Class ID4** |
Row5 | Class ID4 | 01/03/2021 | 01/09/2021 | 01/04/2021 | Class Event | |
Row6 | Class ID5 | * Formula #1 * | * Formula #2 * | 01/05/2021 | | |
Row7 | Class ID6 | | | 01/06/2021 | | |
Row8 | Class ID7 | | | 01/07/2021 | | Class Event |
Row9 | Class ID8 | | | 01/08/2021 | Class ID2** | |
Row10 | Class ID9 | | | 01/09/2021 | Class Event | Class Event |
Row11 | Class ID10 | | | 01/10/2021 | | |
Formula #1 (Column: B)
Find the class ID, and returning the dates into range: B2:B (Working, but not efficient)
=IFERROR(INDEX($D$2:$D,MATCH($A2,E$2:E,0)),INDEX($D$2:$D,MATCH($A2,F$2:F,0)))
...and so on, for each column (There are 60 columns).
Formula #2 (Column: C)
Find class ID, search column, find first instance of "Class Event", return date into range: C2:C
="I have absolutely no clue for this one"
Is this even possible in Google Sheets?
I can use excel if needed (but preferably not as this sheet pulls data from another Google Sheet)

Answer 1

C2:
=ARRAYFORMULA(IFNA(VLOOKUP(B2:B, {F2:F, E2:E; G2:G, E2:E}, 2, 0)))
D2:
as for now, how you stated the dataset, there is nothing to pair events with specific IDs - it would be possible if you would have
Class ID4 Event
instead of just
Class Event
update 1:
C2 for 60 columns would be:
=ARRAYFORMULA(IFNA(VLOOKUP(B2:B,
SPLIT(FLATTEN(IF(F2:BN="",,F2:BN&"×"&E2:E)), "×"), 2, 0)))
update 2:
try in D2 (but it will work only if class event will follow after each id class)
=ARRAYFORMULA(IFNA(VLOOKUP(B2:B, {
QUERY(SPLIT(FLATTEN(IF(TRANSPOSE(F2:BN)="",,
TRANSPOSE(F2:BN)&"×"&TRANSPOSE(E2:E))), "×"),
"select Col1 where Col2 is not null", 0), {
QUERY(QUERY(SPLIT(FLATTEN(IF(TRANSPOSE(F2:BN)="",,
TRANSPOSE(F2:BN)&"×"&TRANSPOSE(E2:E))), "×"),
"select Col2 where Col2 is not null", 0),
"offset 1", 0); ""}}, 2, 0)))