Here's the main differences between Bitcoin, and Monero.

Bitcoin is a transparent ledger, which means by default all transactions are public on the network unless you use obfuscation/privacy-perservation means, whereas with monero the network has privacy preserving features enabled by default that can't be viewed unless you have the keys to see them.

Bitcoin has a fixed hard supply cap (as of right now) of 21 million, and Monero is no longer issuing miner block rewards but rather a tail emission, which grants 0.6 xmr every 2 minutes (block time) in order to offset lost coin supply, & keep Monero circulating.

Bitcoin's block time is 10 minutes, Monero's block time is 2 minutes.

Average Settlement time with high to medium fees, Bitcoin at least ~10 minutes+, monero ~20 minutes after 10 block confirmations but other variables can impact inclusion into Bitcoin Blocks.

Bitcoin mining runs off of ASICs which increase hash power, whereas monero runs off of CPU minability which increases more accessible mining, anyone with a cpu can mine monero, though almost all mining is unprofitable in fiat terms overall for most cryptos.

Bitcoin has a fixed block size, Monero has a dynamic block size, which increases, or shrinks to fit network usage.

Bitcoin has huge fees on layer 1 in fiat terms, Monero has low fees in fiat terms (Bitcoin is ~$0.92 up to $5+, monero is ~$0.05 up to $0.25+)