MathWallet supports EVM chain, including 150 + EVM public chains wallet address creation, token transfer, browser DAPP etc.
Switch network to EVM , click + to create/import EVM wallet address
Create/import wallet, click DApp Chainlist
Search Avalanche Mainnet, click Connect Wallet
Click Add Metamask
After signing, you now completed the network switch and can return to the home page to add assets