There is this unknown miner 19dENFt4wVwos6xtgwStA6n8bbA57WCS58 keep getting all the new blocks in the last 24h it must of got 80% of the blocks

how is this possible it can’t be just hash power surely.
Where did you get that 80% from? sorry but it makes no sense, looking at the coinbase of blocks which belong to that address you can see
-,_b/Foundry USA Pool #dropgold/ k
So, clear as day that this address is owned by "Foundry USA Pool", now that we got that out of the way, let's examine the 80% you mentioned.
In the last 30 days, Foundry pool found 822 blocks, which is exactly 19% of the total 4,331 blocks the whole network found, so it's pretty safe to assume that they own on average 19% of all the hashrate.
Looking at today's results, Foundry found 27 blocks, which is 22% out of the 123 blocks the network found, that is 22%, which isn't far from the average 19%, it could be a bit of luck + more gears added to that pool, nothing unusual is happening here as far as I can see.
Must be a large lucky mining pool.
They have been the largest mining pool on planet earth for months.
Thank you for reaching out to us and your interest in joining the Foundry USA Pool. As much as we would love to have you join our ranks, at this time we are only working with larger operations with at least 25 PH/s.