Do consider factors like transferring ETH to exchanges then exchanging it to BTC then to FLUX, if mining ETH just to swap for FLUX. On top of that, if you are mining with 3080s or 3090s then you probably would have to mod your GPU to keep that hot GDDR6X cool, which again costs €70+ and additional time.
The OP asked for experimental mining, not trading/swapping so suggested to check out FLUX which is on Equihash 125,4 algo and I think the project is going strong. I only have 3080s and 3090s, so I am not so sold on making so much effort to mine ETH, its just too much work with some risk, if modding not done well. However, I do have my MSI Suprim 3080 and 3090 pointed to ETH, as they are so good at handling GDDR6X temps and electricity bill needs to paid, and others to FLUX, because supporting network by mining it is also important for the betterment of a project.

There is nothing about sense or no sense imho, it depends what you prefer and your target is. Some people just mine for fun, some people are addicted to hardware and just buys hardware to mine different coins with them, just to play around. I was one of them in my initial crypto days. There are different people with different goal in crypto space. Everyone has their own preference, so I leave it upto people to decide what makes sense to them and what not. I just put up my opinion.

And yes, I agree with you, if profit at today's price is the only target then there is no doubt ETH is what you should mine. But if you want to explore around then its better to look around with other factors open.

Have fun with mining and enjoy the ride! Good luck

PS: Their (FLUX) miners reward programme https://fluxofficial.medium.com/flux-team-announces-miner-rewards-program-release-date-bad8b03067e3

Depends, its not profitable today but I think it will be worth some value when it gains some exposure. But yes, you know better what to do with your hashes and electricity.
If you judge projects just based on price, then I think you will miss many good projects that are out there. Just imagine not investing in or mining ETH when it was around 80 USD, because it was not profitable to even cover electricity bill at that time. This is crypto and price is not the only factor to look into when looking for new projects, imho.

FLUX, previously known as Zel
coinmarketcap.com/currencies/zel/
zel.network
zelcore.io

It uses Equihash 125,4 algo, which is GPU friendly.
Their wallet, Zelcore is worth checking out. If you need support then you can join their discord. They have very active community and team members are always there to support you or any new members. Have fun!

I love HTH community. Right now, the coin may have low cap and price but their discord is lit.

Thank you for giving us an alternate miner but with same fee and less hashrate than Gminer, it does not look attractive to use. I hope next release will beat Gminer.

Best Nvidia XMR miner out there. Thanks for your work

Very happy to see the devs actively working on this project, even in this bear market. I wish all the best to the team and look forward to the bull run!  

Have been following this project from the very initial days. Swap was super smooth. And the active developers is an icing on the cake! Thank you MC team for your work.

I joined this project early because the mainnet started without any issues and I like the reward system. I have a feeling this project will become successful. Glad that I joined this project early.