Not really. Protein is not something particularly difficult in a reasonably balanced vegan diet, for most people. There are plenty of dietary sources of protein in vegan cooking.

Anybody requiring particularly high levels of protein is probably already supplementing it. Usually with vegan sources anyway.

Of all the possible deficiencies in a vegan diet, protein is by far the least of people's, already small, worries.

There have been multiple scientific studies asking whether vegans get enough protein. The conclusion is always that they do. Here is one of them.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6893534/