To determine whether Bouygues is suitable to issue hybrid bonds, we evaluate the company's financial profile using key credit and scale metrics based on the provided 2022 data.

**1. Scale and Stability:**
- **Revenue:** Bouygues generated a massive €44.32 billion in revenue in 2022, up from €37.59 billion in 2021. 
- **Total Assets:** Stood at €60.59 billion at the end of 2022.
This sheer scale provides immense stability, a foundational requirement for companies issuing subordinated hybrid debt, which generally appeals to institutional investors looking for investment-grade issuers.

**2. Profitability and Cash Flow:**
- **Profit Loss From Operating Activities (EBIT):** €1.87 billion.
- **Depreciation & Amortisation:** €2.23 billion (resulting in an estimated EBITDA of over €4.1 billion).
- **Cash Flows from Operating Activities:** €2.98 billion. 
Consistent profitability and strong cash generation signify that the company can comfortably service the periodic coupon payments associated with hybrid bonds.

**3. Leverage and Debt Servicing:**
- **Net Debt:** €7.44 billion at the end of 2022. 
- **Equity:** €13.93 billion. 
- **Net Debt to Equity Ratio:** Approximately 0.53x, demonstrating conservative leverage.
- **Net Debt to EBITDA:** Roughly 1.8x, which is very healthy and sits well within investment-grade parameters.
- **Interest Coverage:** EBIT (€1.87 billion) divided by Interest Expense (€231 million) gives an interest coverage ratio of approximately 8.1x, highlighting robust debt-servicing capacity.

**Conclusion:**
Hybrid bonds are typically issued by large, financially stable, investment-grade corporations aiming to optimize their capital structure (by gaining equity credit from rating agencies while maintaining tax-deductible interest). With its massive scale, strong EBITDA, comfortable debt levels, and excellent interest coverage, Bouygues fits this profile perfectly.

<answer>Strongly Suitable</answer>