In Linux, I use Softmaker FreeOffice. A free (but not open source) office suite of excellent quality.
Looks as polished as MS Office, works perfectly with HiDPI, and is much faster than both MS Office and LibreOffice.
Looks as polished as MS Office, works perfectly with HiDPI, and is much faster than both MS Office and LibreOffice.
Apart from that issue, their goal is MS Office compatibility, and they deliver quite well. Even more obscure features like review mode and highlighting of changes worked without issues, and I was able to exchange documents with MS Office users.