I wonder if Schlag's Encode Plus, which is designed to work with Apple Home Key as well, is also at all vulnerable. Schlage seems to have a fine record[0] but you never know what corners might be cut to get a product like this to market. https://www.schlage.com/en/home/smart-locks/encode-plus.html
0: video https://youtu.be/WpbKOL1cM34