I've just tried to install Moodle 3.5, but without success:
Your database uses Antelope as the file format. Full UTF-8 support in MySQL and MariaDB requires the Barracuda file format. Please switch to the Barracuda file format. See the documentation MySQL full unicode support for details.
Is that standard in Moodle from now on?
Besides this test failed too:
For full support of UTF-8 both MySQL and MariaDB require you to change your MySQL setting 'innodb_large_prefix' to 'ON'. See the documentation for further details.
and I am not sure if I can change that on the server, but the Barracuda issue I definitely can't.