I tried to install Joomla! 4 (several beta versions to the last RC5-dev from today) on Wampserver 64 on PHP 8.0.7 and 8.0.8 using MariaDB 10.5.10 and it fails.
The message with MySQLi and MySQL PDO types says that the "tags" table is missing. Only 9 tables were created.
With MySQL PDO type, I have another message:
25 tables are created42000, 1118, Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
If I change for MariaDB 10.4.13 all the tables are created without error and I can work on the site.