Bijoy Bayanno uses a unique (phonetic but not Unicode-based) where pressing a Latin letter corresponds to a Bengali character. For example:

Bijoy Bayanno was initially designed for older versions of Windows, and its compatibility with Windows 11 was a concern for many users. However, after thorough testing, it has been found that Bijoy Bayanno can run on Windows 11 with some minor issues.

Rare, but possible: Map each Bijoy font to a Unicode font using LibreOffice’s font substitution table.