Very different. BTC’s full blockchain increases in memory size at an orders of magnitude slower pace due to a max block size of ~4MB each and blocks only every 10 minutes. Despite being around for ~16 years the full BTC blockchain is well under 1TB, versus Solana adds 240-300 TB per MONTH.
In BTC even plebs using cheap hardware at home can run a bitcoin node in “pruned” mode with 10-40 GB of space needed, or you can even run with just the UTXO set and it’s pretty small though constrained.
On Solana today it’s basically already impossible for a pleb to run a node, unless you’re super technical, have a large budget, and use the cloud.