As you can see, at launch the % of burned PSWAP which is allocated as Strategic Bonus Vesting is 0%, and it increases linearly in 5 years to 55%, and then it will stay constant. The other burned PSWAP is reserved for the SORA Parliament (10%) and as a reward for Liquidity Providers. This reward is similar to the one you get from providing liquidity on Uniswap, namely the 0.3% on every trade.