Feature request:

Either fix the conversation view to be on-par with Gmail. (not just group by subject)

-OR-

Ofcourse I started looking for a "split from conversation" or "merge into conversation" button to fix the conversations/emails I selected. I was hoping to help Proton learn with bigdata eventually, and resolve my immediate problem, but this feature does not exist.

Supporting arguments and examples:

Conversation view enabled me to migrate from Gmail to Proton. I pay for it but it is still broken and not on-par.

I have emails by different people/organisations being grouped because they have the same short subject.
This likewise results in the carefully crafted labels that should be different, to show merged into one conversation.

- and on the other hand -

I have multiple people reply to the same email thread, and they do not show up as one conversation.
This likewise results in each of those conversations being oncomplete.
This likewise results in each of those conversations not folding as expected, showing lots of duplicate information.

After importing my Gmail emails, I noticed tons of separate emails that had their own conversations being grouped together in Proton Mail with varying recipients or at all in the case of messages that were sent without response on Gmail. These messages had very different dates by years or completely different labeling even all in one 100 message conversation in Proton Mail's eyes. This has generally caused great issues with attempting to sort messages/conversations into different folders.

So, I suggest the ability to separate messages from a conversation group primarily, as this would fix this issue the most for me. However, also adding the ability to link messages into a conversation would also be helpful for re-packaging a string of emails together.