Follow-up issue of #18844

As described in #63902, it would be good to remove comments and workarounds that have already been fixed.

So this workaround could be imo removed:

I saw that there was a PR about this some time ago, which was closed due to compatibility issues with .NET 4.8.

Is this still the case?
If not, we could actually reactivate the PR (#42491).
If yes, maybe we should consider if a conditional compilation would make sense and that we only use the workaround under .NET 4.8.