Currently, ethereum is still popular, but we cannot guarantee that in the next few years ethereum will still be popular or not, because so far ethereum has had several problems that have prevented developers from being able to solve the problem.
Yes of course Ethereum is a popular currency and is slowly increasing in popularity. But here maybe you mentioned some difficulties and enjoy the difficulties maybe all these difficulties will bring shyness in future. One of the disadvantages I see in Ethereum is that transaction fees are very high. But I think the developers of Ethereum will recover this problem a lot in the future and make their platform more popular. Apart from this problem I don't see any problem but if you face any other problem then definitely mention it.
The problem of high gas fees has been around for a long time, due. And ethereum dev has no solution to this problem. Currently the ethereum gas fee is down, but I think this is due to traffic problems on the ethereum network not being busy, if it's busy again the gas fee will rise again. Currently, many have switched to Solana and BSC