From previous experience, where we did this kind of approach, I can tell you that we had a lot of issues. Especially when exporting to dwg, also there is possibility of slowing down the file, when you use extensively this kind of lines.
Versions 13 to 25 CPU: AMD Ryzen 9 5900X 12-Core RAM:32GB GPU: RTX 2080Ti Windows 11
@ArchiMind indeed, these are to be used with care and knowing the downstream path the drawings might take, I was posting the workaround to avoid the rounded edges on thick lines. Thank you for your feedback!