Receive an offer but it's in EUR, should I request to switch to MYR?

No. Stick to EUR.

RM keep drop so say leh ?

Which job did you give up?

https://forum.lowyat.net/topic/5206752

With new job so only work 1 job?

how to you plan to "store" your EUR in local MY bank? I assume you work for a foreign company but resides in MY?
Are you planning to convert part of it every month?

better get in EURO

Open a multicurrency account here in Malaysia at your nearest bank branch and request to be paid in EUR

Can you ask for a certain percentage in euros and the rest in RM?

From my experience working with foreign company they will only able to paid in their company currency either in EUR or USD. If you base in Malaysia and they dont have any register office in malaysia they only can paid in EUR or USD.

DO take note few point company contribution EPF, SOCSO, Insurance is not possible if malaysia dont have office.

As currency would be fluctuate during exchange rate, Do discuss on this issue.

As working employee we cant have foreign currency account unless you have a company current account with primary RM and secondary other foreign currency.

If you can have EUR receiving accounts, then this question is no contest.