Users who cannot or have not yet setup the ord wallet can receive inscriptions and ordinals with alternative bitcoin wallets, as long as they are very careful about how they spend from that wallet.
This guide gives some basic steps on how to create a wallet with Sparrow Wallet which is compatible with ord and can be later imported into ord
As a general rule if you take this approach, you should use this wallet with the Sparrow software as a receive-only wallet. Do not spend any satoshis from this wallet unless you are sure you know what you are doing. You could very easily inadvertently lose access to your ordinals and inscriptions if you don't heed this warning.