No, as far as I know, Amal prefers to avoid antimigration coatings to ease implant removal.
This will depend on a several factors so ask your installer. However, do note that knife edge installs are not recommended for flex implants:
From my understanding, there have been some improvements in the construction of the flex implants and I think that it’s covered by warranty. So click the button on the website.
You might have to wait for those to heal but ask your installer.