Balances from https://info.uniswap.org/#/pools are different to their respective block explorer balances

Bug Description
Hello, I've noticed that the token and ETH balances of pools shown by https://info.uniswap.org/#/pools/ are very different to the actual balances shown on etherscan.io. This is not an issue with the v2 pool website, which correctly shows the pool balances matching etherscan.io.

Steps to Reproduce

1. Go to any v3 pool, in this case the UNI/ETH 0.3% fee pool: https://info.uniswap.org/#/pools/0x1d42064fc4beb5f8aaf85f4617ae8b3b5b8bd801. The balances as of March 6th, 2022 are shown on the pool website to be:
   UNI: 2.06m
   ETH: 2.18k

2. Now click the link leading to the pool's etherscan page, in this case the UNI/ETH 0.3% pool is at https://etherscan.io/address/0x1d42064fc4beb5f8aaf85f4617ae8b3b5b8bd801. The balances on etherscan from the same time show:
   UNI: 1.89m
   ETH: 817

3. For comparison, here are the v2 UNI/ETH pool and etherscan pages showing matching balances:
   Pool: https://v2.info.uniswap.org/pair/0xd3d2e2692501a5c9ca623199d38826e513033a17
   etherscan: https://etherscan.io/address/0xd3d2e2692501a5c9ca623199d38826e513033a17

I have tried this with ~10 currencies, and all of the balances are different between the pool page and the respective etherscan page, by differing degrees.

Expected Behavior
I expected the balances to be the same between the Uniswap v3 Pool website and the pool's page on etherscan.io. There may be a reason for this difference, but I have not been able to find it.

Start with the reported UNI/ETH 0.3% v3 pool page and compare its UNI and ETH balances with the linked Etherscan address at the same block or time. Use the v2 pool and Etherscan pages as a comparison because they reportedly match. Done means v3 pool balances agree with the corresponding block explorer balances across the reported pools.