Here is an example of Apples = Apples, which is not your question:

"83. May employers receive the credits under section 51 of the Internal Revenue Code (the Work Opportunity Tax Credit or WOTC) and the Employee Retention Credit for the same employee for the same period?

No. An Eligible Employer may not claim the Employee Retention Credit and the WOTC for the same employee for the same period of time."

"and the other 941 credit."

The 941 can be used to fund the Retention (Cares Act) credit. From Form 8846: "Certain food and beverage establishments use this form to claim a credit for social security and Medicare taxes paid or incurred by the employer on certain employees’ tips. The credit is part of the general business credit."

I found this:

https://www.bdo.com/insights/tax/business-incentives-tax-credits/irs-issues-additional-guidance-on-t...

"Treatment of Tips and FICA Tip Credit

Considerable confusion has arisen as to whether tips count as qualified wages for the ERC, since customers (not the employer) generally pay the employee the tips. Notice 2021-49 clarifies that cash tips are qualified wages if all other requirements to treat the amounts as qualified wages are met. The notice also confirms that eligible employers are not prevented from receiving both the ERC and the FICA tip tax credit on the same wages."

And:

"Notice 2021-49 confirms that this reduction in the deduction amount must occur in the same tax year the ERC is claimed. Accordingly, if an employer files a claim for the credit for a prior tax year, it must also file an amended federal tax return to reduce the amount of the wage deduction claimed in the corresponding period."