I think Arbitrum will be further developed and implemented in different crypto services. Right now Arbitrum support is still quite weak if we talk about different services, but there is potential, especially considering the difference in commissions compared to ETH. I consider Layer 2 as one of the main direction in altcoins, which will get hype in 2024-2025, and ZK-Rollups may also be affected by this hype. It is also worth paying attention to Layer 0 projects.
I don't think the support can be considered weak when the network is barely launched and operational, there are already projects showing interest in building in this l2 network and to be honest, i think they will receive lots of support, have you used arbitrum eth to transfer? the fees are similar to the eth we use to know way back when.
They are new in the space but i believe they will have many interesting projects wanting to work with them because it is easy and less expensive.