How do your two approaches compare with gasThreader's approach?

[redbar0n]

[1] https://sites.google.com/a/mcpher.com/share/Home/excelquirks/gasthreader

[redbar0n]

[2] This inline Web worker approach is another approach to multithreading in Google Apps Script (GAS): https://www.html5rocks.com/en/tutorials/workers/basics/#toc-inlineworkers

Which someone allegedly got to work with GAS (while others didn't): https://issuetracker.google.com/issues/36762597

[redbar0n]

[3] This is a third approach, using triggers: https://stackoverflow.com/questions/57053706/how-to-create-trigger-to-run-multiple-function-in-parallel-passing-parameter/57071937#57071937

Not sure how reliable triggers are, since according to [1] trigger timing accuracy can be +-15 minutes. That post was written in 2014 it seems. Things might have changed since then.

I'm sure a lot of people would value your insights on this, when evaluating which approach best suits their use case.