Oxford Nanopore sequencing technology is still sometimes considered less accurate. This is true to a certain extent, but it is true in the sense of "technology A is 99.99% accurate and technology B is 99.999%". In reality, this technology is very accurate, "accurate enough", and only some specific applications (eg genome assembly) benefit from combining ONT with Illumina technology. This is not the case for metagenomic analyses.
Along with the laboratory processing of samples by ONT technology, data analysis can be ordered at the same time, which uses appropriate databases and results in graphs of taxonomic frequencies of individual categories and individual samples. It may happen that well-annotated databases do not exist for a certain group of organisms or a "less common" target gene. In this case, please contact us.