In addition to the pistol itself, you also start with Standard Issue Suppressor in your inventory. Attaching it to the Chimano 88 as soon as possible gets you your first silent weapon and allows you to participate in Plan A (stealth).
Because its base damage is already low, suppressing it will have little effect on its damage. Having said that however, there really is no reason to use this pistol as soon as other options are available.
The Chimano 88 with the Tactical Pistol Light attachment is commonly used by security guards, metropolitan police, SWAT variant of the shield, and Overkill bikers. SWAT and FBI officers also have a Chimano 88 pistol as their standard sidearm, which can be seen tucked away in their pistol holsters, although they never draw them.
It and the STRYK 18c has similar inventory icons and identical silhouettes. The differences, if any, are minor lighting changes.
Hoxton also uses a Chimano 88 with the same setup as his sidearm, which he draws out when downed or while idling in a combat heist. It is stored inside of his character model during stealth.
On the right side of the gun, there is "#14" written in what appears to be a pink marker or highlighter, indicating it may have been stolen from a police evidence locker.
The "88" at the end of the name is a reference to the Swedish Armed Forces' designation of the GLOCK 17 as the Pistol 88.