Is this symbol for common-mode choke or usual inductor?
L1 is a common mode choke. L2 is a single choke but it exist twice in the circuit. If you look at the part designators in the schematic items like C1 and C2 repeat often, obviously as independant parts.

This was done for no other reason then to simplify the parts list. Technically it is NOT the best way to draw up schematics as it is confusing until you understand the intent of showing the same part designator on multiple parts.

EDIT: The L1 symbol defines it as a common mode choke that exist one time only. L2 implies that each instance of L2 has the same value. As @Andyaka noted in his comment irrational self-created notation can make the values per part ambiguous.

The second schematic is more rational to read and it implies that by symbol that both 'L' designators are common mode. To that extent the first and second schematic are NOT the same. The first has ambiguous part values, the second makes thing more clear but does not annotate each part. Company policy may dictate that publicly posted diagrams be a crude approximation of the actual schematic, and not the one they did the board layout with.

Sometimes good engineering is understanding how other engineers think, as they may follow their 'own' standards and not international standards. Must be trying to save on ink...